{"id":7766,"date":"2022-07-03T16:18:49","date_gmt":"2022-07-03T07:18:49","guid":{"rendered":"https:\/\/hatsudy.com\/jp\/?p=7766"},"modified":"2022-07-20T21:51:30","modified_gmt":"2022-07-20T12:51:30","slug":"buffer-solution","status":"publish","type":"post","link":"https:\/\/hatsudy.com\/jp\/buffer-solution.html","title":{"rendered":"\u7de9\u885d\u6db2\uff1a\u4e2d\u548c\u306b\u3088\u3063\u3066\u7de9\u885d\u6db2\u3084\u5869\u306e\u6c34\u6eb6\u6db2\u306epH\u3092\u8a08\u7b97\u3059\u308b\u624b\u9806"},"content":{"rendered":"\n<p>\u901a\u5e38\u3001\u9178\u3084\u5869\u57fa\u3092\u52a0\u3048\u308b\u3068pH\u304c\u6025\u6fc0\u306b\u52d5\u304d\u307e\u3059\u3002\u7279\u306b\u4e2d\u6027\u4ed8\u8fd1\u3067\u306f\u3001pH\u306e\u5909\u52d5\u5e45\u304c\u975e\u5e38\u306b\u5927\u304d\u3044\u3067\u3059\u3002<\/p>\n<p>\u305f\u3060\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u3001pH\u306b\u3088\u308b\u5909\u52d5\u304c\u8d77\u3053\u3063\u3066\u307b\u3057\u304f\u306a\u3044\u5834\u9762\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u3046\u3057\u305f\u3068\u304d\u306b\u5229\u7528\u3055\u308c\u308b\u306e\u304c\u7de9\u885d\u6db2\u3067\u3059\u3002\u9178\u3084\u5869\u57fa\u3092\u52a0\u3048\u3066\u3082\u3001pH\u306e\u4e0a\u6607\u3084\u4e0b\u843d\u304c\u307b\u3068\u3093\u3069\u8d77\u3053\u3089\u306a\u3044\u6eb6\u6db2\u304c\u7de9\u885d\u6db2\u3067\u3059\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u3001\u306a\u305c\u7de9\u885d\u6db2\u3092\u5229\u7528\u3059\u308b\u3068pH\u306e\u5909\u52d5\u304c\u307b\u3068\u3093\u3069\u8d77\u3053\u3089\u306a\u3044\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u3069\u306e\u3088\u3046\u306b\u7de9\u885d\u6db2\u3092\u4f5c\u308c\u3070\u3044\u3044\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u307e\u305f\u7de9\u885d\u6db2\u3092\u5b66\u3076\u3068\u304d\u3001\u4e0d\u5b8c\u5168\u306a\u4e2d\u548c\u6ef4\u5b9a\u3092\u3057\u305f\u308a\u3001\u5869\u306epH\u3092\u8a08\u7b97\u3057\u305f\u308a\u3059\u308b\u5834\u9762\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3089\u306e\u8a08\u7b97\u3092\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u96fb\u96e2\u5b9a\u6570\u3092\u5229\u7528\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002\u305d\u3053\u3067\u7de9\u885d\u6db2\u306e\u6027\u8cea\u3084pH\u306e\u8a08\u7b97\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h2>\u7de9\u885d\u6db2\u306e\u5f79\u5272\uff1apH\u306e\u5909\u5316\u3092\u3086\u308b\u3084\u304b\u306b\u3059\u308b<\/h2>\n<p>\u96fb\u96e2\u5e73\u8861\u3092\u5b66\u3093\u3060\u5f8c\u3001\u5fc5\u305a\u7406\u89e3\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u3044\u306e\u304c\u7de9\u885d\u6db2\u3067\u3059\u3002\u9178\u307e\u305f\u306f\u5869\u57fa\u3092\u52a0\u3048\u308b\u3068\u3001\u6c34\u6eb6\u6db2\u306epH\u306f\u5927\u304d\u304f\u5909\u5316\u3057\u307e\u3059\u3002\u305f\u3060\u3001\u3053\u306e\u4f8b\u5916\u3068\u3057\u3066\u7de9\u885d\u6db2\u304c\u3042\u308a\u307e\u3059\u3002\u7de9\u885d\u6db2\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u3001\u5f37\u9178\u3084\u5f37\u5869\u57fa\u3092\u52a0\u3048\u3066\u3082pH\u306e\u5909\u5316\u306f\u307b\u3068\u3093\u3069\u8d77\u3053\u308a\u307e\u305b\u3093\u3002<\/p>\n<p><span style=\"color: #0000ff;\">pH\u306e\u5909\u5316\u304c\u307b\u3068\u3093\u3069\u306a\u3044\u305f\u3081\u3001pH\u3092\u4e00\u5b9a\u306b\u4fdd\u3061\u305f\u3044\u5834\u5408\u306b\u7de9\u885d\u6db2\u304c\u7528\u3044\u3089\u308c\u307e\u3059\u3002<\/span>\u4f8b\u3048\u3070\u8840\u6db2\u3084\u7d30\u80de\u5185\u6db2\u306f\u7de9\u885d\u6db2\u3067\u6e80\u305f\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u9178\u3084\u5869\u57fa\u306b\u3088\u3063\u3066\u6025\u6fc0\u306bpH\u304c\u5909\u5316\u3059\u308b\u3068\u3001\u7d30\u80de\u306b\u969c\u5bb3\u3092\u4e0e\u3048\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001pH\u304c\u5909\u5316\u3057\u306a\u3044\u3088\u3046\u306b\u8840\u6db2\u3084\u7d30\u80de\u5185\u306f\u7de9\u885d\u6db2\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u3001\u3069\u306e\u3088\u3046\u306b\u7de9\u885d\u6db2\u3092\u4f5c\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u4ee5\u4e0b\u306e\u6eb6\u6db2\u304c\u7de9\u885d\u6db2\u306e\u4f8b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u5f31\u9178 \uff0b \u5f31\u9178\u306e\u5869\uff08\u4f8b\uff1aCH<sub>3<\/sub>COOH \uff0b CH<sub>3<\/sub>COONa\uff09<\/li>\n<li>\u5f31\u5869\u57fa \uff0b \u5f31\u5869\u57fa\u306e\u5869\uff08\u4f8b\uff1aNH<sub>3<\/sub> \uff0b NH<sub>4<\/sub>Cl\uff09<\/li>\n<\/ul>\n<p>\u7de9\u885d\u6db2\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u3001\u9162\u9178\uff08CH<sub>3<\/sub>COOH\uff09\u3068\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\uff08CH<sub>3<\/sub>COONa\uff09\u304c\u6df7\u3056\u3063\u3066\u3044\u308b\u4f8b\u3067\u8003\u3048\u307e\u3057\u3087\u3046\u3002\u9162\u9178\u306f\u96fb\u96e2\u5ea6\u304c\u4f4e\u304f\u3001\u6c34\u6eb6\u6db2\u306b\u306f\u5927\u91cf\u306e\u9162\u9178\uff08CH<sub>3<\/sub>COOH\uff09\u304c\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u30ca\u30c8\u30ea\u30a6\u30e0\u306f\u5f37\u5869\u57fa\u7531\u6765\u306e\u91d1\u5c5e\u3067\u3042\u308b\u305f\u3081\u3001\u6c34\u6eb6\u6db2\u4e2d\u3067100%\u96fb\u96e2\u3057\u3066\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\uff08CH<sub>3<\/sub>COONa\uff09\u3092\u6eb6\u304b\u3059\u5834\u5408\u3001\u3059\u3079\u3066\u96fb\u96e2\u3057\u3066CH<sub>3<\/sub>COO<sup>&#8211;<\/sup>\u3068Na<sup>+<\/sup>\u306b\u5206\u304b\u308c\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u6c34\u6eb6\u6db2\u4e2d\u306b\u306f\u5927\u91cf\u306eCH<sub>3<\/sub>COO<sup>&#8211;<\/sup>\u304c\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u7de9\u885d\u6db2\u306b\u5bfe\u3057\u3066\u3001\u5f37\u9178\u3068\u3057\u3066\u5869\u9178\uff08HCl\uff09\u3092\u52a0\u3048\u308b\u3068\u3069\u3046\u306a\u308b\u3067\u3057\u3087\u3046\u304b\u3002\u524d\u8ff0\u306e\u901a\u308a\u6c34\u6eb6\u6db2\u4e2d\u306b\u306f\u5927\u91cf\u306eCH<sub>3<\/sub>COO<sup>&#8211;<\/sup>\u304c\u5b58\u5728\u3059\u308b\u305f\u3081\u3001H<sup>+<\/sup>\u3068\u53cd\u5fdc\u3059\u308b\u3053\u3068\u3067\u9162\u9178\u304c\u751f\u307e\u308c\u307e\u3059\u3002\u307e\u305f\u3001\u540c\u6642\u306b\u5869\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u304c\u751f\u307e\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li>CH<sub>3<\/sub>COONa \uff0b HCl \u2192 CH<sub>3<\/sub>COOH \uff0b NaCl<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/07\/pdj11.jpg\" alt=\"\" width=\"593\" height=\"268\" class=\"aligncenter size-full wp-image-7846\" \/><\/p>\n<p>\u9162\u9178\u306e\u96fb\u96e2\u5ea6\u306f\u5f31\u3044\u305f\u3081\u3001\u9162\u9178\u304c\u751f\u6210\u3057\u3066\u3082pH\u306e\u4e0a\u6607\u306f\u307b\u3068\u3093\u3069\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001pH\u306e\u6025\u6fc0\u306a\u4e0a\u6607\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4e00\u65b9\u3001\u5f37\u5869\u57fa\u3068\u3057\u3066\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\uff08NaOH\uff09\u3092\u52a0\u3048\u308b\u5834\u5408\u306f\u3069\u3046\u3067\u3057\u3087\u3046\u304b\u3002\u6c34\u6eb6\u6db2\u4e2d\u306b\u306f\u5927\u91cf\u306e\u9162\u9178\uff08CH<sub>3<\/sub>COOH\uff09\u304c\u6eb6\u3051\u3066\u3044\u308b\u305f\u3081\u3001\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u306f\u9162\u9178\u3068\u53cd\u5fdc\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>CH<sub>3<\/sub>COOH \uff0b NaOH \u2192 CH<sub>3<\/sub>COONa \uff0b H<sub>2<\/sub>O<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/07\/kfje5.jpg\" alt=\"\" width=\"593\" height=\"271\" class=\"aligncenter size-full wp-image-7765\" \/><\/p>\n<p>\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u304c\u751f\u6210\u3057\u3066\u3082\u3001pH\u3078\u306e\u5f71\u97ff\u306f\u307b\u3068\u3093\u3069\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001pH\u306e\u5909\u5316\u3092\u6291\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u96fb\u96e2\u5b9a\u6570\u3092\u5229\u7528\u3057\u3001\u7de9\u885d\u6db2\u306epH\u3092\u8a08\u7b97\u3059\u308b<\/h3>\n<p>\u305d\u308c\u3067\u306f\u3001\u96fb\u96e2\u5b9a\u6570\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u7de9\u885d\u6db2\u306epH\u3092\u8a08\u7b97\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u4ee5\u4e0b\u306e\u554f\u984c\u306e\u7b54\u3048\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<ul>\n<li>0.20mol\/L\u306e\u9162\u917850mL\u30680.20mol\/L\u306e\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u6c34\u6eb6\u6db250mL\u3092\u6df7\u305c\u3001\u6c34\u3092\u52a0\u3048\u308b\u3053\u3068\u30671L\u306b\u3057\u307e\u3057\u305f\u3002\u96fb\u96e2\u5b9a\u6570K<sub>a<\/sub>\u304c2.7\u00d710<sup>-5<\/sup>mol\/L\u3001log<sub>10<\/sub>2.7\u304c0.43\u306e\u5834\u5408\u3001\u6c34\u6eb6\u6db2\u306epH\u3092\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002\u306a\u304a\u3001pH\u306f\u6709\u52b9\u6570\u5b572\u30b1\u30bf\u3067\u6c42\u3081\u307e\u3057\u3087\u3046\u3002<\/li>\n<\/ul>\n<p>\u96fb\u96e2\u5b9a\u6570K<sub>a<\/sub>\u306f\u4ee5\u4e0b\u306e\u516c\u5f0f\u306b\u3088\u3063\u3066\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(K_a=\\displaystyle\\frac{[CH_3COO^-][H^+]}{[CH_3COOH]}\\)<\/li>\n<\/ul>\n<p>\u3064\u307e\u308a\u9162\u9178\uff08CH<sub>3<\/sub>COOH\uff09\u3068\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\uff08CH<sub>3<\/sub>COONa\uff09\u306e\u30e2\u30eb\u6fc3\u5ea6\u304c\u308f\u304b\u308c\u3070\u3001H<sup>+<\/sup>\u306e\u30e2\u30eb\u6fc3\u5ea6\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u524d\u8ff0\u306e\u901a\u308a\u3001\u9162\u9178\u306e\u96fb\u96e2\u5ea6\u306f\u975e\u5e38\u306b\u4f4e\u304f\u3001\u6c34\u6eb6\u6db2\u4e2d\u3067\u307b\u3068\u3093\u3069\u9162\u9178\u306e\u307e\u307e\u5b58\u5728\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u9162\u9178\u30a4\u30aa\u30f3\u3078\u306e\u5bc4\u4e0e\u306f\u4f4e\u304f\u3001\u300c\u52a0\u3048\u305f\u9162\u9178\u306e\u91cf\u2252\u6c34\u6eb6\u6db2\u4e2d\u306e\u9162\u9178\u6fc3\u5ea6\u300d\u3068\u307f\u306a\u3057\u307e\u3057\u3087\u3046\u3002\u4e00\u65b9\u3001\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u306f\u6c34\u6eb6\u6db2\u4e2d\u3067100%\u96fb\u96e2\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u52a0\u3048\u305f\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u306e\u91cf\u306b\u7740\u76ee\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u305d\u3046\u3059\u308b\u3068\u3001\u9162\u9178\u3068\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u306e\u7269\u8cea\u91cf\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u9162\u9178\uff1a\\(0.20\u00d7\\displaystyle\\frac{50}{1000}=0.010\\)<\/li>\n<li>\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\uff1a\\(0.20\u00d7\\displaystyle\\frac{50}{1000}=0.010\\)<\/li>\n<\/ul>\n<p>\u3053\u3046\u3057\u3066\u3001\u305d\u308c\u305e\u308c0.010mol\u304c\u6eb6\u6db2\u4e2d\u306b\u6eb6\u3051\u3066\u3044\u308b\u3068\u308f\u304b\u308a\u307e\u3059\u3002\u306a\u304a\u6eb6\u6db2\u306e\u91cf\u306f1L\u306a\u306e\u3067\u3001\u4e21\u65b9\u3068\u30820.010mol\/L\u3067\u3059\u3002\u305d\u3053\u3067\u96fb\u96e2\u5b9a\u6570K<sub>a<\/sub>\u3092\u5229\u7528\u3057\u3001H<sup>+<\/sup>\u306e\u30e2\u30eb\u6fc3\u5ea6\u3092\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\\(2.7\u00d710^{-5}=\\displaystyle\\frac{0.01[H^+]}{0.01}\\)<\/p>\n<p>\\([H^+]=2.7\u00d710^{-5}\\)<\/p>\n<p>\u3053\u3046\u3057\u3066\u3001H<sup>+<\/sup>\u306e\u30e2\u30eb\u6fc3\u5ea6\u306f2.7\u00d710<sup>-5<\/sup>mol\/L\u3068\u308f\u304b\u308a\u307e\u3059\u3002\u305d\u3053\u3067pH\u3092\u5f97\u308b\u516c\u5f0f\u306b\u4ee3\u5165\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\\(pH=-log_{10}(2.7\u00d710^{-5})\\)<\/p>\n<p>\\(=5-0.43\\)<\/p>\n<p>\\(=4.57(\u22524.6)\\)<\/p>\n<p>\u3053\u3046\u3057\u3066\u3001pH\u306f4.6\u3068\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<h3>\u7de9\u885d\u6db2\u306b\u5f37\u9178\u307e\u305f\u306f\u5f37\u5869\u57fa\u3092\u52a0\u3048\u308b\u3068\u304d\u3001\u5909\u5316\u3059\u308bpH\u3092\u6c42\u3081\u308b<\/h3>\n<p>\u305d\u308c\u3067\u306f\u3001\u7de9\u885d\u6db2\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u306f\u672c\u5f53\u306bpH\u306e\u5909\u5316\u304c\u307b\u3068\u3093\u3069\u306a\u3044\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u5b9f\u969b\u306b\u8a08\u7b97\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>pH\u304c4.6\u306e\u5834\u5408\u3001\u5f37\u9178\u3092\u308f\u305a\u304b\u3067\u3082\u5165\u308c\u308b\u3068pH\u306f1\uff5e2\u306b\u306a\u308a\u307e\u3059\u3002\u307e\u305f\u5c11\u3057\u306e\u5f37\u5869\u57fa\u3092\u5165\u308c\u308b\u3068\u3001pH\u306f12\uff5e13\u306b\u306a\u308a\u307e\u3059\u3002\u305f\u3060\u7de9\u885d\u6db2\u306b\u5f37\u9178\u307e\u305f\u306f\u5f37\u5869\u57fa\u3092\u5165\u308c\u308b\u5834\u5408\u3001pH\u306e\u5909\u5316\u304c\u307b\u3068\u3093\u3069\u306a\u3044\u306e\u3067\u3059\u3002\u4f8b\u3068\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u554f\u984c\u3092\u89e3\u3044\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<ul>\n<li>\u5148\u307b\u3069\u306e\u4f8b\u984c\u3067\u4e0a\u3052\u305f\u6c34\u6eb6\u6db2\uff08pH=4.6\uff09\u306b\u3064\u3044\u3066\u30010.20mol\/L\u306e\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u6c34\u6eb6\u6db2\u309210mL\u5165\u308c\u308b\u5834\u5408\u3001pH\u306f\u3044\u304f\u3089\u306b\u306a\u308b\u3067\u3057\u3087\u3046\u304b\u3002\u306a\u304a\u96fb\u96e2\u5b9a\u6570Ka\u306f2.7\u00d710<sup>-5<\/sup>mol\/L\u3001log<sub>10<\/sub>1.8\u306f0.26\u3067\u3059\u3002\u307e\u305f\u3001pH\u306f\u6709\u52b9\u6570\u5b572\u30b1\u30bf\u3067\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\n<\/ul>\n<p>NaOH\u3092\u52a0\u3048\u308b\u5834\u5408\u3001\u9162\u9178\u3068\u53cd\u5fdc\u3059\u308b\u3053\u3068\u3067\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>CH<sub>3<\/sub>COOH \uff0b NaOH \u2192 CH<sub>3<\/sub>COONa \uff0b H<sub>2<\/sub>O<\/li>\n<\/ul>\n<p>\u52a0\u3048\u308b\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u306e\u7269\u8cea\u91cf\u306f0.0020mol\u3067\u3059\u3002<\/p>\n<p>\\(0.2\u00d7\\displaystyle\\frac{10}{1000}=0.002\\)<\/p>\n<p>\u5148\u307b\u3069\u8a08\u7b97\u3057\u305f\u901a\u308a\u3001\u6eb6\u6db2\u4e2d\u306b\u306f\u9162\u9178\u304c0.010mol\u3001\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u304c0.010mol\u6eb6\u3051\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u30920.0020mol\u52a0\u3048\u308b\u3068\u3001\u6d88\u8cbb\u3055\u308c\u308b\u9162\u9178\u306f0.0020mol\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u9162\u9178\u306e\u7269\u8cea\u91cf\u306f0.0080mol\u306b\u306a\u308a\u307e\u3059\u3002\u4e00\u65b9\u3067\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u306f0.0020mol\u5897\u3048\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/07\/pdj13.jpg\" alt=\"\" width=\"600\" height=\"151\" class=\"aligncenter size-full wp-image-7851\" \/><\/p>\n<p>\u305d\u306e\u305f\u3081\u53cd\u5fdc\u5f8c\u3001\u9162\u9178\u306e\u7269\u8cea\u91cf\u306f0.0080mol\u3067\u3042\u308a\u3001\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u306e\u7269\u8cea\u91cf\u306f0.012mol\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f1L\u306e\u6c34\u6eb6\u6db2\u306b\u5bfe\u3057\u306610mL\u306e\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u6c34\u6eb6\u6db2\u3092\u52a0\u3048\u3066\u3044\u308b\u305f\u3081\u3001\u5168\u4f53\u306e\u4f53\u7a4d\u306f1010mL\uff081.01L\uff09\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u9162\u9178\u3068\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u306e\u30e2\u30eb\u6fc3\u5ea6\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u9162\u9178\uff1a\\(\\displaystyle\\frac{0.0080}{1.01}\\)mol\/L<\/li>\n<li>\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\uff1a\\(\\displaystyle\\frac{0.012}{1.01}\\)mol\/L<\/li>\n<\/ul>\n<p>\u305d\u3053\u3067\u96fb\u96e2\u5b9a\u6570K<sub>a<\/sub>\u3092\u5229\u7528\u3057\u3001H<sup>+<\/sup>\u306e\u30e2\u30eb\u6fc3\u5ea6\u3092\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\\(2.7\u00d710^{-5}=\\displaystyle\\frac{\\displaystyle\\frac{0.012[H^+]}{1.01}}{\\displaystyle\\frac{0.0080}{1.01}}\\)<\/p>\n<p>\\(2.7\u00d710^{-5}=\\displaystyle\\frac{0.012[H^+]}{0.0080}\\)<\/p>\n<p>\\([H^+]=\\displaystyle\\frac{2.7\u00d710^{-5}\u00d70.0080}{0.012}\\)<\/p>\n<p>\\([H^+]=1.8\u00d710^{-5}\\)<\/p>\n<p>[H<sup>+<\/sup>]\u306e\u30e2\u30eb\u6fc3\u5ea6\u304c\u308f\u304b\u3063\u305f\u305f\u3081\u3001pH\u3092\u5f97\u308b\u516c\u5f0f\u306b\u4ee3\u5165\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\\(pH=-log_{10}(1.8\u00d710^{-5})\\)<\/p>\n<p>\\(=5-0.26\\)<\/p>\n<p>\\(=4.74(\u22524.7)\\)<\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u591a\u3081\u306e\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u6c34\u6eb6\u6db2\u3092\u52a0\u3048\u3066\u3082pH\u306e\u5909\u5316\u306f4.6\u304b\u30894.7\u3067\u3059\u3002\u7de9\u885d\u6db2\u3092\u5229\u7528\u3059\u308c\u3070\u3001\u8a08\u7b97\u306b\u3088\u3063\u3066\u3082pH\u306e\u5909\u5316\u304c\u307b\u3068\u3093\u3069\u306a\u3044\u3068\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<h2>\u4e0d\u5b8c\u5168\u306a\u4e2d\u548c\u53cd\u5fdc\u306b\u3088\u3063\u3066\u751f\u3058\u308b\u7de9\u885d\u6db2\u306epH\u306e\u8a08\u7b97<\/h2>\n<p>\u306a\u304a\u3001\u7de9\u885d\u6db2\u306f\u4e2d\u548c\u53cd\u5fdc\u306b\u3088\u3063\u3066\u4f5c\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u3053\u3053\u307e\u3067\u3001\u9162\u9178\u3068\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u3092\u6df7\u5408\u3059\u308b\u5834\u9762\u3067\u89e3\u8aac\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u305d\u3053\u3067\u9162\u9178\u3068\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u3092\u52a0\u3048\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u4e2d\u548c\u53cd\u5fdc\u306b\u3088\u3063\u3066\u7de9\u885d\u6db2\u3092\u4f5c\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u9162\u9178\u306b\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u3092\u52a0\u3048\u308b\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u53cd\u5fdc\u304c\u8d77\u3053\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>CH<sub>3<\/sub>COOH \uff0b NaOH \u2192 CH<sub>3<\/sub>COONa \uff0b H<sub>2<\/sub>O<\/li>\n<\/ul>\n<p>\u9162\u9178\u3068\u540c\u3058\u7269\u8cea\u91cf\u306e\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u3092\u52a0\u3048\u308b\u5834\u5408\u3001\u6c34\u6eb6\u6db2\u306b\u9162\u9178\u304c\u306a\u304f\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u305d\u3053\u3067\u9162\u9178\u3088\u308a\u3082\u5c11\u306a\u3044\u7269\u8cea\u91cf\u306e\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u3092\u52a0\u3048\u307e\u3059\u3002\u305d\u3046\u3059\u308b\u3068\u3001\u6eb6\u6db2\u4e2d\u306b\u9162\u9178\u3068\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u306e\u4e21\u65b9\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/07\/kfje12.jpg\" alt=\"\" width=\"595\" height=\"266\" class=\"aligncenter size-full wp-image-7790\" \/><\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001<span style=\"color: #ff0000;\">\u4e0d\u5b8c\u5168\u306a\u4e2d\u548c\u53cd\u5fdc\u306b\u3088\u3063\u3066\u3082\u7de9\u885d\u6db2\u3092\u4f5c\u308c\u308b\u3053\u3068\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/span>\u307e\u305f\u3001pH\u306e\u8a08\u7b97\u3092\u884c\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\u3002\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u554f\u984c\u306e\u7b54\u3048\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<ul>\n<li>0.10mol\/L\u306e\u9162\u9178\u6c34\u6eb6\u6db230mL\u306b\u5bfe\u3057\u3066\u30010.10mol\/L\u306e\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u6c34\u6eb6\u6db2\u309220mL\u52a0\u3048\u307e\u3057\u305f\u3002\u6eb6\u6db2\u306epH\u3092\u6709\u52b9\u6570\u5b572\u30b1\u30bf\u3067\u6c42\u3081\u307e\u3057\u3087\u3046\u3002\u306a\u304a\u96fb\u96e2\u5b9a\u6570Ka\u306f2.7\u00d710<sup>-5<\/sup>mol\/L\u3001log<sub>10<\/sub>1.35\u306f0.13\u3067\u3059\u3002<\/li>\n<\/ul>\n<p>\u307e\u305a\u3001\u9162\u9178\u3068\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u306e\u7269\u8cea\u91cf\u3092\u8a08\u7b97\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u9162\u9178\uff1a\\(0.10\u00d7\\displaystyle\\frac{30}{1000}=0.0030\\)mol<\/li>\n<li>\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\uff1a\\(0.10\u00d7\\displaystyle\\frac{20}{1000}=0.0020\\)mol<\/li>\n<\/ul>\n<p>\u9162\u9178\u3068\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u306f1\uff1a1\u3067\u53cd\u5fdc\u3059\u308b\u305f\u3081\u3001\u53cd\u5fdc\u5f8c\u306e\u7269\u8cea\u91cf\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/07\/pdj12.jpg\" alt=\"\" width=\"600\" height=\"132\" class=\"aligncenter size-full wp-image-7849\" \/><\/p>\n<p>\u307e\u305f\u6c34\u6eb6\u6db2\u306e\u4f53\u7a4d\u306f\u5408\u8a08\u306750mL\uff080.05L\uff09\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u9162\u9178\u3068\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u306e\u30e2\u30eb\u6fc3\u5ea6\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u9162\u9178\uff1a\\(\\displaystyle\\frac{0.001}{0.05}\\)mol\/L<\/li>\n<li>\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\uff1a\\(\\displaystyle\\frac{0.002}{0.05}\\)mol\/L<\/li>\n<\/ul>\n<p>\u305d\u3053\u3067\u96fb\u96e2\u5b9a\u6570K<sub>a<\/sub>\u3092\u5229\u7528\u3057\u3001H<sup>+<\/sup>\u306e\u30e2\u30eb\u6fc3\u5ea6\u3092\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\\(2.7\u00d710^{-5}=\\displaystyle\\frac{\\displaystyle\\frac{0.002[H^+]}{0.05}}{\\displaystyle\\frac{0.001}{0.05}}\\)<\/p>\n<p>\\(2.7\u00d710^{-5}=\\displaystyle\\frac{0.002[H^+]}{0.001}\\)<\/p>\n<p>\\([H^+]=\\displaystyle\\frac{2.7\u00d710^{-5}\u00d70.001}{0.002}\\)<\/p>\n<p>\\([H^+]=1.35\u00d710^{-5}\\)<\/p>\n<p>[H<sup>+<\/sup>]\u306e\u30e2\u30eb\u6fc3\u5ea6\u3092\u8a08\u7b97\u3057\u305f\u5f8c\u3001pH\u3092\u5f97\u308b\u516c\u5f0f\u306b\u4ee3\u5165\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\\(pH=-log_{10}(1.35\u00d710^{-5})\\)<\/p>\n<p>\\(pH=5-0.13\\)<\/p>\n<p>\\(pH=4.87(\u22524.9)\\)<\/p>\n<p>\u3053\u3046\u3057\u3066\u3001pH\u306f4.9\u3067\u3042\u308b\u3068\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u3053\u308c\u307e\u3067\u89e3\u8aac\u3057\u305f\u65b9\u6cd5\u3068\u540c\u3058\u3088\u3046\u306b\u3001\u53cd\u5fdc\u5f8c\u306e\u9162\u9178\u3068\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u306e\u30e2\u30eb\u6fc3\u5ea6\u3092\u8a08\u7b97\u3057\u3001\u96fb\u96e2\u5b9a\u6570\u306e\u516c\u5f0f\u306b\u5f53\u3066\u306f\u3081\u308b\u3053\u3068\u3067\u7b54\u3048\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u96fb\u96e2\u5b9a\u6570\u3092\u5229\u7528\u3057\u3001\u5869\u306e\u6c34\u6eb6\u6db2\u306epH\u3092\u6c42\u3081\u308b<\/h3>\n<p>\u5148\u307b\u3069\u3001\u4e0d\u5b8c\u5168\u306a\u4e2d\u548c\u53cd\u5fdc\u3092\u5229\u7528\u3057\u3066pH\u306e\u8a08\u7b97\u3092\u3057\u307e\u3057\u305f\u3002\u305d\u308c\u3067\u306f\u3001\u3059\u3079\u3066\u306e\u9162\u9178\u3092\u4e2d\u548c\u3055\u305b\u3066\u53cd\u5fdc\u3092\u5b8c\u4e86\u3055\u305b\u308b\u5834\u5408\u306f\u3069\u306e\u3088\u3046\u306bpH\u306e\u8a08\u7b97\u3092\u3059\u308c\u3070\u3044\u3044\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>\u9178\u3068\u5869\u57fa\u3092\u6df7\u305c\u308b\u3068\u5869\uff08\u3048\u3093\uff09\u304c\u751f\u6210\u3055\u308c\u307e\u3059\u3002\u5869\u306b\u3088\u3063\u3066\u306f\u9178\u6027\u3092\u793a\u3057\u305f\u308a\u3001\u5869\u57fa\u6027\u3092\u793a\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u3092\u65e2\u306b\u7fd2\u3063\u3066\u3044\u308b\u3068\u601d\u3044\u307e\u3059\u3002\u5fa9\u7fd2\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/06\/oejf7.jpg\" alt=\"\" width=\"600\" height=\"279\" class=\"aligncenter size-full wp-image-7271\" \/><\/p>\n<p>\u305d\u308c\u3067\u306f\u3001\u5f31\u9178\u6027\u3092\u793a\u3059\u5869\u3084\u5f31\u5869\u57fa\u6027\u3092\u793a\u3059\u5869\u306b\u3064\u3044\u3066\u3001pH\u306f\u3044\u304f\u3089\u306b\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u5869\u306e\u6c34\u6eb6\u6db2\u306epH\u3092\u6c42\u3081\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u8a08\u7b97\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306f\u3001\u624b\u9806\u3092\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<span style=\"color: #0000ff;\">\u5869\u306epH\u3092\u8a08\u7b97\u3059\u308b\u3068\u304d\u306f\u8a18\u53f7\u3092\u7701\u3044\u305f\u308a\u3001\u9006\u6570\u3092\u5229\u7528\u3057\u305f\u308a\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002<\/span>\u3064\u307e\u308a\u3001\u8a08\u7b97\u65b9\u6cd5\u3092\u899a\u3048\u3066\u3044\u306a\u3044\u3068\u307b\u3068\u3093\u3069\u306e\u4eba\u306f\u554f\u984c\u3092\u89e3\u3051\u307e\u305b\u3093\u3002\u57fa\u672c\u7684\u306a\u8a08\u7b97\u65b9\u6cd5\u306f\u540c\u3058\u3067\u3042\u308b\u3082\u306e\u306e\u3001\u5869\u306epH\u3092\u5f97\u308b\u306b\u306f\u30b3\u30c4\u304c\u3042\u308b\u306e\u3067\u3059\u3002<\/p>\n<p>\u305d\u3053\u3067\u3001\u5b8c\u5168\u306b\u4e2d\u548c\u3055\u305b\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u5f97\u3089\u308c\u308b\u5869\u306epH\u3092\u8a08\u7b97\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u554f\u984c\u306e\u7b54\u3048\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<ul>\n<li>0.10mol\/L\u306e\u9162\u9178\u6c34\u6eb6\u6db2100mL\u306b\u5bfe\u3057\u3066\u30010.10mol\/L\u306e\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u6c34\u6eb6\u6db2\u3092100mL\u52a0\u3048\u307e\u3057\u305f\u3002\u6eb6\u6db2\u306epH\u3092\u6c42\u3081\u307e\u3057\u3087\u3046\u3002\u306a\u304a\u9162\u9178\u306e\u96fb\u96e2\u5b9a\u6570K<sub>a<\/sub>\u306f2.0\u00d710<sup>-5<\/sup>mol\/L\u3001log<sub>10<\/sub>2\u306f0.30\u3001\u6c34\u306e\u30a4\u30aa\u30f3\u7a4d[H<sup>+<\/sup>][OH<sup>&#8211;<\/sup>]\u306f1.0\u00d710<sup>-14<\/sup>(mol\/L)<sup>2<\/sup>\u3067\u3059\u3002<\/li>\n<\/ul>\n<p>\u307e\u305a\u3001\u4e2d\u548c\u5f8c\u306b\u8d77\u3053\u3063\u3066\u3044\u308b\u5e73\u8861\u72b6\u614b\u3092\u8a18\u8f09\u3057\u307e\u3057\u3087\u3046\u3002\u9162\u9178\u306f\u5f31\u9178\u3067\u3042\u308a\u3001\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u306f\u5f37\u5869\u57fa\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u751f\u6210\u3059\u308b\u5869\u306f\u5f31\u5869\u57fa\u306e\u6027\u8cea\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<p>Na<sup>+<\/sup>\u306f\u5f37\u5869\u57fa\u7531\u6765\u3067\u3042\u308b\u305f\u3081\u3001\u6c34\u6eb6\u6db2\u4e2d\u3067\u3059\u3079\u3066\u96fb\u96e2\u3057\u3066\u3044\u307e\u3059\u3002\u540c\u6642\u306b\u3001\u4e2d\u548c\u53cd\u5fdc\u306b\u3088\u3063\u3066\u751f\u3058\u308b\u9162\u9178\u30a4\u30aa\u30f3\u306b\u3064\u3044\u3066\u3082\u3001\u6c34\u6eb6\u6db2\u4e2d\u3067\u3059\u3079\u3066CH<sub>3<\/sub>COO<sup>&#8211;<\/sup>\u3067\u5b58\u5728\u3057\u307e\u3059\u3002\u305f\u3060\u3001\u4e2d\u6027\u306e\u6c34\u6eb6\u6db2\u4e2d\u306b\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\uff08CH<sub>3<\/sub>COONa\uff09\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u53cd\u5fdc\u306b\u3088\u3063\u3066\u6c34\u6eb6\u6db2\u306f\u5869\u57fa\u6027\u3092\u793a\u3059\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>CH<sub>3<\/sub>COO<sup>&#8211;<\/sup> \uff0b H<sub>2<\/sub>O \u21c6 CH<sub>3<\/sub>COOH \uff0b OH<sup>&#8211;<\/sup><\/li>\n<\/ul>\n<p>\u305d\u3053\u3067\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u306e\u30e2\u30eb\u6fc3\u5ea6\u3068\u96fb\u96e2\u5b9a\u6570K<sub>a<\/sub>\u306b\u7740\u76ee\u3057\u3066\u554f\u984c\u3092\u89e3\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>\u30fb\u751f\u6210\u3059\u308b\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u306e\u7269\u8cea\u91cf\u3092\u8a08\u7b97\u3059\u308b<\/strong><\/p>\n<p>\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u306e\u7269\u8cea\u91cf\u304c\u308f\u304b\u3089\u306a\u3044\u3068\u8a08\u7b97\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u3053\u3067\u3001\u4e2d\u548c\u53cd\u5fdc\u306b\u3088\u3063\u3066\u751f\u307e\u308c\u308b\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u306e\u91cf\u3092\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u9162\u9178\u3068\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u306f1\uff1a1\u3067\u4e2d\u548c\u53cd\u5fdc\u3092\u8d77\u3053\u3057\u307e\u3059\u30020.10mol\/L\u306e\u9162\u9178\u6c34\u6eb6\u6db2100mL\u30680.10mol\/L\u306e\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u6c34\u6eb6\u6db2100mL\u3092\u52a0\u3048\u3066\u3044\u308b\u305f\u3081\u3001\u751f\u6210\u3059\u308b\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u306e\u7269\u8cea\u91cf\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\\(0.10\u00d7\\displaystyle\\frac{100}{1000}=0.010\\)<\/p>\n<p>\u3053\u3046\u3057\u3066\u3001\u751f\u6210\u3059\u308b\u9162\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u306e\u7269\u8cea\u91cf\u306f0.010mol\u3068\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n<p><strong>\u30fb\u9162\u9178\u30a4\u30aa\u30f3\u304b\u3089\u3001\u9162\u9178\u3068\u6c34\u9178\u5316\u7269\u30a4\u30aa\u30f3\u304c\u751f\u6210\u7269\u3059\u308b\u7269\u8cea\u91cf\u3092\u8a08\u7b97\u3059\u308b<\/strong><\/p>\n<p>\u6b21\u306b\u3001\u9162\u9178\u30a4\u30aa\u30f3\u304c\u6c34\u3068\u53cd\u5fdc\u3059\u308b\u3053\u3068\u3067\u9162\u9178\u3068\u6c34\u9178\u5316\u7269\u30a4\u30aa\u30f3\u3078\u5909\u5316\u3059\u308b\u3068\u304d\u3001\u3069\u308c\u3060\u3051\u306e\u7269\u8cea\u91cf\u304c\u751f\u6210\u3059\u308b\u306e\u304b\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002\u751f\u6210\u3059\u308b\u6c34\u9178\u5316\u7269\u30a4\u30aa\u30f3\u306e\u7269\u8cea\u91cf\u3092\\(x\\)\u3068\u3059\u308b\u3068\u3001\u9162\u9178\u30a4\u30aa\u30f3\u3068\u6c34\u3068\u306e\u53cd\u5fdc\u5f8c\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308b\u3068\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/07\/fjh3.jpg\" alt=\"\" width=\"594\" height=\"213\" class=\"aligncenter size-full wp-image-7800\" \/><\/p>\n<p>\u96fb\u96e2\u5e73\u8861\u306e\u8a08\u7b97\u3067\u306f\u3001\u6c34\u6eb6\u6db2\u306b\u306f\u5927\u91cf\u306e\u6c34\u304c\u5b58\u5728\u3059\u308b\u305f\u3081\u3001\u6c34\u306e\u91cf\u306f\u307b\u3068\u3093\u3069\u5909\u5316\u304c\u306a\u304f\u3001\u5e73\u8861\u306b\u5bc4\u4e0e\u3057\u306a\u3044\u306e\u3067\u524a\u9664\u3067\u304d\u308b\u3053\u3068\u306f\u65e2\u306b\u7fd2\u3063\u3066\u3044\u308b\u3068\u601d\u3044\u307e\u3059\u3002\u305d\u3053\u3067\u3001\u6c34\u304c\u95a2\u4e0e\u3059\u308b\u53cd\u5fdc\u306f\u7121\u8996\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u307e\u305f\u3082\u3046\u4e00\u3064\u91cd\u8981\u306a\u306e\u306f\u3001<span style=\"color: #ff0000;\">\u53cd\u5fdc\u5f8c\u306b\u751f\u6210\u3059\u308bCH<sub>3<\/sub>COO<sup>&#8211;<\/sup>\u306e\u7269\u8cea\u91cf\u3092\\(0.010-x\\)mol\u3067\u306f\u306a\u304f\u30010.010mol\u306b\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/span>\u672c\u6765\u3001\u53cd\u5fdc\u5f8c\u306e\u7269\u8cea\u91cf\u306f\\(0.010-x\\)mol\u304c\u6b63\u3057\u3044\u3067\u3059\u3002\u305d\u308c\u306b\u3082\u95a2\u308f\u3089\u305a\u3001\u306a\u305c\\(x\\)\u3092\u6392\u9664\u3057\u3066\u3082\u3044\u3044\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>\u524d\u8ff0\u306e\u901a\u308a\u3001\u5f31\u9178\u3084\u5f31\u5869\u57fa\u306e\u96fb\u96e2\u5ea6\u306f\u5024\u304c\u975e\u5e38\u306b\u4f4e\u3044\u3067\u3059\u30020.010mol\u306b\u6bd4\u3079\u3066\u5024\u304c\u975e\u5e38\u306b\u5c0f\u3055\u3044\u5834\u5408\u3001\u8aa4\u5dee\u3068\u3057\u3066\u53d6\u308a\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6570\u5b66\u306e\u8a08\u7b97\u3067\u3042\u308c\u3070\u3001\\(0.010-x\\)\u30920.010\u306b\u3057\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002<span style=\"color: #0000ff;\">\u305f\u3060\u5316\u5b66\u3067\u306f\u3001\u6709\u52b9\u6570\u5b57\u306e\u6982\u5ff5\u304c\u3042\u308b\u3053\u3068\u304b\u3089\u308f\u304b\u308b\u901a\u308a\u3001\u975e\u5e38\u306b\u5c0f\u3055\u3044\u6570\u5b57\u306f\u7701\u3051\u308b\u306e\u3067\u3059\u3002<\/span><\/p>\n<p><strong>\u30fb\u7269\u8cea\u91cf\u3092\u30e2\u30eb\u6fc3\u5ea6\u306b\u76f4\u3059<\/strong><\/p>\n<p>\u305d\u308c\u3067\u306f\u5148\u307b\u3069\u306e\u7d50\u679c\u3092\u5229\u7528\u3057\u3066\u3001\u7269\u8cea\u91cf\u3092\u30e2\u30eb\u6fc3\u5ea6\u306b\u76f4\u3057\u307e\u3057\u3087\u3046\u3002\u9162\u9178\u3068\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u3092\u305d\u308c\u305e\u308c100mL\u52a0\u3048\u3066\u3044\u308b\u305f\u3081\u3001\u5408\u8a08\u306f200mL\uff080.2L\uff09\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30e2\u30eb\u6fc3\u5ea6\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u9162\u9178\u30a4\u30aa\u30f3\uff1a\\(\\displaystyle\\frac{0.010}{0.2}=0.05\\)mol\/L<\/li>\n<li>\u9162\u9178\uff1a\\(\\displaystyle\\frac{x}{0.2}=5x\\)mol\/L<\/li>\n<li>\u6c34\u9178\u5316\u7269\u30a4\u30aa\u30f3\uff1a\\(\\displaystyle\\frac{x}{0.2}=5x\\)mol\/L<\/li>\n<\/ul>\n<p>\u305d\u3053\u3067\u3001\u96fb\u96e2\u5b9a\u6570\u3092\u5229\u7528\u3057\u3066\u6c34\u9178\u5316\u7269\u30a4\u30aa\u30f3\u306e\u30e2\u30eb\u6fc3\u5ea6\u3092\u5f97\u307e\u3057\u3087\u3046\u3002\u3053\u3053\u3067\u306f\u3001\u9162\u9178\u30a4\u30aa\u30f3\u306e\u96fb\u96e2\u5b9a\u6570\u3092K<sub>h<\/sub>\u3068\u3057\u307e\u3059\u3002K<sub>h<\/sub>\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8868\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li>CH<sub>3<\/sub>COO<sup>&#8211;<\/sup> \uff0b H<sub>2<\/sub>O \u21c6 CH<sub>3<\/sub>COOH \uff0b OH<sup>&#8211;<\/sup><\/li>\n<li>\\(K_h=\\displaystyle\\frac{[CH_3COOH][OH^-]}{[CH_3COO^-]}\\)<\/li>\n<\/ul>\n<p>\u203b\u524d\u8ff0\u306e\u901a\u308a\u3001\u96fb\u96e2\u5e73\u8861\u3067\u306f[H<sub>2<\/sub>O]\u3092\u7701\u304d\u307e\u3059\u3002<\/p>\n<p><strong>\u30fbK<sub>h<\/sub>\u306e\u9006\u6570\u3092\u5229\u7528\u3057\u3001\u6c34\u306e\u30a4\u30aa\u30f3\u7a4d\u3092\u304b\u3051\u308b<\/strong><\/p>\n<p>\u305f\u3060\u3001\u9162\u9178\u30a4\u30aa\u30f3\u306e\u96fb\u96e2\u5b9a\u6570K<sub>h<\/sub>\u306f\u554f\u984c\u6587\u306b\u4e0e\u3048\u3089\u308c\u3066\u3044\u307e\u305b\u3093\u3002\u79c1\u305f\u3061\u304c\u308f\u304b\u308b\u306e\u306f\u3001\u9162\u9178\u306e\u96fb\u96e2\u5b9a\u6570K<sub>a<\/sub>\uff082.0\u00d710<sup>-5<\/sup>mol\/L\uff09\u3067\u3059\u3002\u3069\u306e\u3088\u3046\u306b\u3057\u3066\u3001K<sub>h<\/sub>\u3092\u5f97\u308c\u3070\u3044\u3044\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>\u307e\u305a\u3001\u9162\u9178\u306e\u96fb\u96e2\u5b9a\u6570\u3092\u8a18\u3057\u307e\u3057\u3087\u3046\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>CH<sub>3<\/sub>COOH \u21c6 CH<sub>3<\/sub>COO<sup>&#8211;<\/sup> \uff0b H<sup>+<\/sup><\/li>\n<li>\\(K_a=\\displaystyle\\frac{[CH_3COO^-][H^+]}{[CH_3COOH]}\\)<\/li>\n<\/ul>\n<p>\u6b21\u306b\u3001<span style=\"color: #ff0000;\">K<sub>a<\/sub>\u306e\u9006\u6570\u3092\u53d6\u308a\u307e\u3059\u3002<\/span>\u306a\u305c\u9006\u6570\u3092\u53d6\u308b\u306e\u304b\u7591\u554f\u306b\u601d\u3063\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002\u3072\u3068\u307e\u305a\u3001\u9006\u6570\u306b\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\\(\\displaystyle\\frac{1}{K_a}=\\displaystyle\\frac{[CH_3COOH]}{[CH_3COO^-][H^+]}\\)<\/p>\n<p>\u305d\u306e\u5f8c\u3001<span style=\"color: #0000ff;\">\u4e21\u8fba\u306b\u5bfe\u3057\u3066\u6c34\u306e\u30a4\u30aa\u30f3\u7a4d\u3092\u304b\u3051\u307e\u3057\u3087\u3046\u3002<\/span>pH\u306e\u6027\u8cea\u3088\u308a\u3001[H<sup>+<\/sup>]\u3068[OH<sup>&#8211;<\/sup>]\u3092\u304b\u3051\u308b\u30681.0\u00d710<sup>-14<\/sup>(mol\/L)<sup>2<\/sup>\u306b\u306a\u308a\u307e\u3059\u3002\u3064\u307e\u308a[H<sup>+<\/sup>]\u3068[OH<sup>&#8211;<\/sup>]\u306e\u304b\u3051\u7b97\u306f\u5b9a\u6570\u3067\u3042\u308a\u3001\u6c7a\u307e\u3063\u305f\u4e00\u3064\u306e\u5024\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u4e21\u8fba\u306b[H+][OH-]\u3092\u304b\u3051\u3066\u4ee5\u4e0b\u306e\u5f0f\u3092\u4f5c\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/07\/fjh2.jpg\" alt=\"\" width=\"493\" height=\"145\" class=\"aligncenter size-full wp-image-7799\" \/><\/p>\n<p>\u3053\u3046\u3057\u3066K<sub>a<\/sub>\u306e\u9006\u6570\u3068\u6c34\u306e\u30a4\u30aa\u30f3\u7a4d[H<sup>+<\/sup>][OH<sup>&#8211;<\/sup>]\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067K<sub>h<\/sub>\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002K<sub>h<\/sub>\u3084\u9162\u9178\u306e\u30e2\u30eb\u6fc3\u5ea6\u3001\u6c34\u9178\u5316\u7269\u30a4\u30aa\u30f3\u306e\u30e2\u30eb\u6fc3\u5ea6\u3001\u9162\u9178\u30a4\u30aa\u30f3\u306e\u30e2\u30eb\u6fc3\u5ea6\u306f\u308f\u304b\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u5024\u3092\u4ee3\u5165\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066OH<sup>&#8211;<\/sup>\u306e\u30e2\u30eb\u6fc3\u5ea6\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/07\/fjh5.jpg\" alt=\"\" width=\"384\" height=\"198\" class=\"aligncenter size-full wp-image-7803\" \/><\/p>\n<p>\u3053\u3046\u3057\u3066\u3001\u6c34\u6eb6\u6db2\u4e2d\u306b\u542b\u307e\u308c\u3066\u3044\u308bOH<sup>&#8211;<\/sup>\u306e\u7269\u8cea\u91cf\uff08\\(x\\)\u306e\u5024\uff09\u306f1.0\u00d710<sup>-6<\/sup>mol\u3068\u308f\u304b\u308a\u307e\u3057\u305f\u30021.0\u00d710<sup>-6<\/sup>mol\u304c200mL\uff080.2L\uff09\u306b\u6eb6\u3051\u3066\u3044\u308b\u305f\u3081\u3001OH<sup>&#8211;<\/sup>\u306e\u30e2\u30eb\u6fc3\u5ea6\u306f5.0\u00d710<sup>-6<\/sup>mol\u3067\u3059\u3002<\/p>\n<p>\\(\\displaystyle\\frac{1.0\u00d710^{-6}}{0.2}=5.0\u00d710^{-6}\\)<\/p>\n<p>\u307e\u305f\u524d\u8ff0\u306e\u901a\u308a\u3001\u6c34\u306e\u30a4\u30aa\u30f3\u7a4d\u306f1.0\u00d710<sup>-14<\/sup>\u306b\u306a\u308b\u305f\u3081\u3001\u5b58\u5728\u3059\u308b[H<sup>+<\/sup>]\uff08H<sup>+<\/sup>\u306e\u30e2\u30eb\u6fc3\u5ea6\uff09\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\\(1.0\u00d710^{-14}=5.0\u00d710^{-6}\u00d7[H^+]\\)<\/p>\n<p>\\([H^+]=2.0\u00d710^{-9}\\)<\/p>\n<p>\u305d\u3053\u3067\u3001pH\u3092\u5f97\u308b\u516c\u5f0f\u306b\u5f53\u3066\u306f\u3081\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\\(pH=-log_{10}(2.0\u00d710^{-9})\\)<\/p>\n<p>\\(pH=9-0.30\\)<\/p>\n<p>\\(pH=8.7\\)<\/p>\n<p>\u3053\u3046\u3057\u3066\u3001\u5869\u306e\u6c34\u6eb6\u6db2\u306epH\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002\u7de9\u885d\u6db2\u3084\u96fb\u96e2\u5b9a\u6570\u306b\u95a2\u308f\u308b\u554f\u984c\u306e\u4e2d\u3067\u3082\u3001\u5869\u306epH\u3092\u8a08\u7b97\u3059\u308b\u3068\u304d\u306f\u624b\u9806\u3092\u899a\u3048\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u8a08\u7b97\u306e\u904e\u7a0b\u306f\u8907\u96d1\u3067\u3059\u3002\u305f\u3060\u7269\u8cea\u91cf\u3084\u30e2\u30eb\u6fc3\u5ea6\u3001\u96fb\u96e2\u5b9a\u6570\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066[H<sup>+<\/sup>]\u3092\u51fa\u3057\u3001pH\u3092\u8a08\u7b97\u3059\u308b\u306e\u306f\u540c\u3058\u3067\u3059\u3002<\/p>\n<h2>\u96fb\u96e2\u5b9a\u6570\u3092\u5229\u7528\u3057\u3001\u7de9\u885d\u6db2\u306epH\u306e\u8a08\u7b97\u3092\u884c\u3046<\/h2>\n<p>\u5316\u5b66\u3092\u5b66\u3076\u3068\u304d\u3001\u96e3\u3057\u3044\u5185\u5bb9\u306e\u4e00\u3064\u304c\u96fb\u96e2\u5e73\u8861\u3067\u3059\u3002\u305d\u306e\u4e2d\u3067\u3082\u3001\u7de9\u885d\u6db2\u306f\u554f\u984c\u306e\u5185\u5bb9\u304c\u8907\u96d1\u306b\u306a\u308a\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n<p>\u305f\u3060\u3001\u57fa\u672c\u7684\u306a\u89e3\u304d\u65b9\u306f\u540c\u3058\u3067\u3059\u3002\u7269\u8cea\u91cf\u3084\u30e2\u30eb\u6fc3\u5ea6\u3092\u8a08\u7b97\u3057\u305f\u5f8c\u3001\u96fb\u96e2\u5b9a\u6570\u3092\u5229\u7528\u3057\u3066pH\u3092\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u306a\u304a\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u3001\u89e3\u304d\u65b9\u3092\u899a\u3048\u3066\u3044\u306a\u3044\u3068\u7b54\u3048\u3092\u5f97\u3089\u308c\u306a\u3044\u30b1\u30fc\u30b9\u304c\u3042\u308a\u307e\u3059\u3002\u4ee3\u8868\u4f8b\u304c\u5869\u306epH\u306e\u8a08\u7b97\u3067\u3059\u3002\u4e0d\u5b8c\u5168\u306a\u4e2d\u548c\u3067\u3042\u308c\u3070\u7de9\u885d\u6db2\u3092\u4f5c\u308c\u307e\u3059\u3002\u4e00\u65b9\u3067\u5b8c\u5168\u306a\u4e2d\u548c\u3067\u306f\u5869\u306b\u3088\u3063\u3066\u6c34\u6eb6\u6db2\u306f\u9178\u6027\u307e\u305f\u306f\u5869\u57fa\u6027\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u3001pH\u3092\u8a08\u7b97\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u5316\u5b66\u306e\u8a08\u7b97\u554f\u984c\u3068\u3044\u3046\u306e\u306f\u3001\u89e3\u304d\u65b9\u3092\u7406\u89e3\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u304c\u91cd\u8981\u3067\u3059\u3002\u7279\u306b\u96fb\u96e2\u5e73\u8861\u306e\u8a08\u7b97\u3067\u306f\u3001\u5f31\u9178\uff08\u307e\u305f\u306f\u5f31\u5869\u57fa\uff09\u306e\u7269\u8cea\u91cf\u3092\u7121\u8996\u3059\u308b\u306a\u3069\u3001\u89e3\u304d\u65b9\u3092\u899a\u3048\u3066\u3044\u306a\u3044\u3068\u8a08\u7b97\u304c\u96e3\u3057\u3044\u3067\u3059\u3002\u305d\u3053\u3067\u3001\u3069\u306e\u3088\u3046\u306b\u96fb\u96e2\u5b9a\u6570\u3092\u5229\u7528\u3057\u3066\u8a08\u7b97\u3059\u308c\u3070\u3044\u3044\u306e\u304b\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u901a\u5e38\u3001\u9178\u3084\u5869\u57fa\u3092\u52a0\u3048\u308b\u3068pH\u304c\u6025\u6fc0\u306b\u52d5\u304d\u307e\u3059\u3002\u7279\u306b\u4e2d\u6027\u4ed8\u8fd1\u3067\u306f\u3001pH\u306e\u5909\u52d5\u5e45\u304c\u975e\u5e38\u306b\u5927\u304d\u3044\u3067\u3059\u3002 \u305f\u3060\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u3001pH\u306b\u3088\u308b\u5909\u52d5\u304c\u8d77\u3053\u3063\u3066\u307b\u3057\u304f\u306a\u3044\u5834\u9762\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u3046\u3057\u305f\u3068\u304d\u306b\u5229\u7528\u3055\u308c\u308b\u306e\u304c\u7de9\u885d\u6db2\u3067\u3059\u3002\u9178\u3084\u5869\u57fa\u3092\u52a0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7805,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":{"0":"post-7766","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-chemistry"},"_links":{"self":[{"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/posts\/7766","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/comments?post=7766"}],"version-history":[{"count":15,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/posts\/7766\/revisions"}],"predecessor-version":[{"id":8267,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/posts\/7766\/revisions\/8267"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/media\/7805"}],"wp:attachment":[{"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/media?parent=7766"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/categories?post=7766"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/tags?post=7766"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}