{"id":3604,"date":"2022-03-21T15:22:28","date_gmt":"2022-03-21T07:22:28","guid":{"rendered":"https:\/\/www.hnyt99.com\/index.php\/2022\/03\/21\/%e6%b0%b4%e8%b4%a8%e7%9b%91%e6%b5%8b%e4%b8%ad%e5%bc%ba%e7%a2%b1%e6%bb%b4%e5%ae%9a%e5%bc%b1%e9%85%b8%e3%80%81%e5%bc%ba%e9%85%b8%e6%bb%b4%e5%ae%9a%e5%bc%b1%e7%a2%b1\/"},"modified":"2022-03-26T10:11:13","modified_gmt":"2022-03-26T02:11:13","slug":"983","status":"publish","type":"post","link":"https:\/\/www.hnyt99.com\/baike\/shuizijc\/983.html","title":{"rendered":"\u6c34\u8d28\u76d1\u6d4b\u4e2d\u5f3a\u78b1\u6ef4\u5b9a\u5f31\u9178\u3001\u5f3a\u9178\u6ef4\u5b9a\u5f31\u78b1"},"content":{"rendered":"\n
\u3000\u30001\u3001\u5f3a\u78b1\u6ef4\u5b9a\u5f31\u9178<\/p>\n\n\n\n
\u3000\u3000\u4ee50.1000mol\/L\u7684NaOH\u6eb6\u6db2\u6ef4\u5b9a20.00Ml0.1000mol\/L\u7684HAc\u4e3a\u4f8b\uff0c\u5b83\u4eec\u7684\u53cd\u5e94\u662f\uff1a<\/p>\n\n\n\n \u3000\u3000\u751f\u6210\u7684NaAc\u662f\u4e00\u79cd\u5f3a\u78b1\u5f31\u9178\u76d0\uff0c\u6c34\u89e3\u540e\u6eb6\u6db2\u5448\u78b1\u6027\uff0c\u6240\u4ee5\u6ef4\u5b9a\u8fbe\u5230\u8ba1\u91cf\u70b9\u65f6\u6eb6\u6db2\u5448\u78b1\u6027\u3002\u6ef4\u5b9a\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/p>\n\n\n\n \u3000\u3000\u2460\u6ef4\u5b9a\u524d \u6ef4\u5b9a\u524dHAc\u6eb6\u6db2\u6d53\u5ea6\u4e3a0.1000mol\/L,\u7531\u4e8eHAc\u662f\u5f31\u9178\uff0c\u53ea\u90e8\u5206\u7535\u79bb\uff0c\u56e0\u6b64\u6eb6\u6db2\u4e2d\u7684H+\u6d53\u5ea6\u987b\u6839\u636eHAc\u7684\u7535\u79bb\u5e73\u8861\u6765\u8ba1\u7b97\uff1a<\/p>\n\n\n\n \u3000\u3000\u2461\u8ba1\u91cf\u70b9\u524d \u6ef4\u5b9a\u5f00\u59cb\u81f3\u8ba1\u91cf\u70b9\u524d\uff0c\u6eb6\u6db2\u4e2d\u5269\u4f59\u7684HAc\u3001\u53cd\u5e94\u4ea7\u7269NaAc\u540c\u65f6\u5b58\u5728\u3002\u7ec4\u6210\u7f13\u51b2\u6eb6\u6db2\u3002[Ac-]\u4e3a\u4ea7\u751f\u7684NaAc\u6d53\u5ea6\u3002<\/p>\n\n\n\n \u3000\u3000\u5269\u4f59HAc\u7684\u6d53\u5ea6\u5219\u4e3a\uff1a<\/p>\n\n\n\n \u3000\u3000\u4f8b\u5982\uff0c\u6ef4\u5165NaOH\u6eb6\u6db219.98mL\u65f6\uff0c\u5269\u4f59HAc\u4f53\u79ef\u4e3a0.02mL<\/p>\n\n\n\n \u3000\u3000\u2462\u8ba1\u91cf\u70b9\u65f6 \u5f53\u6ef4\u516520mLNaOH\u6eb6\u6db2\u65f6\uff0cHAc\u5168\u90e8\u88ab\u4e2d\u548c\u751f\u6210NaAc\uff0c\u7531\u4e8eNaAc\u6c34\u89e3\uff0c\u4f7f\u6eb6\u6db2\u5448\u78b1\u6027\uff0c\u6839\u636e\u6c34\u89e3\u8ba1\u7b97\u516c\u5f0f\uff1a<\/p>\n\n\n\n \u3000\u3000\u2463\u8ba1\u91cf\u70b9\u540e \u7531\u4e8e\u8fc7\u91cf\u7684NaOH\u5b58\u5728\uff0c\u6291\u5236\u4e86NaAc\u7684\u6c34\u89e3\uff0c\u6b64\u65f6\u6eb6\u6db2\u4e2d[H+]\u7531\u8fc7\u91cf\u7684NaOH\u51b3\u5b9a\u3002\u4f8b\u5982\uff1a\u5f53\u6ef4\u5165NaOH\u6eb6\u6db220.02mol\/L\u65f6(\u8fc7\u91cf\u7684NaOH\u6eb6\u6db2\u4f53\u79ef\u4e3a0.02mL)\uff0c\u5219<\/p>\n\n\n\n \u3000\u3000\u5982\u6b64\u8ba1\u7b97\uff0c\u5c06\u8ba1\u7b97\u7ed3\u679c\u5217\u4e8e\u4e0b\u8868(\u88686.4)\uff0c\u5e76\u7ed8\u5236\u6210\u6ef4\u5b9a\u66f2\u7ebf(\u56fe6.7)\u3002\u7531\u6b64\u53ef\u77e5\uff0c\u6eb6\u6db2pH\u503c\u7684\u53d8\u5316\u548c\u5f3a\u78b1\u6ef4\u5b9a\u5f3a\u9178\u4e00\u6837\uff0c\u4e5f\u4f53\u73b0\u6e10\u53d8\u2192\u7a81\u53d8\u2192\u6e10\u53d8\u7684\u89c4\u5f8b\uff0c\u5e76\u4e14\u5728\u8ba1\u91cf\u70b9\u9644\u8fd1\u4e5f\u5b58\u5728\u7740\u7531\u4e8e\u4e00\u6ef4\u4e4b\u5dee\u800c\u4ea7\u751f\u7684\u6ef4\u5b9a\u7a81\u8dc3(pH=7.7~9.7)\u6240\u4e0d\u540c\u7684\u5728\u4e8e\uff1a<\/p>\n\n\n\n \u3000\u30001)\u5f3a\u78b1\u6ef4\u5b9a\u5f31\u9178\u5728\u8ba1\u91cf\u70b9\u65f6\uff0c\u6eb6\u6db2\u7684pH\u503c\u5927\u4e8e7\u3002<\/p>\n\n\n\n \u3000\u30002)\u5f3a\u78b1\u6ef4\u5b9a\u5f31\u9178\u7684\u7a81\u8dc3\u90e8\u5206\u8981\u6bd4\u524d\u4e00\u7c7b\u578b\u5c0f\u5f97\u591a\uff0c\u5e76\u4e14\u5904\u5728\u78b1\u6027\u8303\u56f4\u4e4b\u5185\u3002\u8fd9\u662f\u7531\u4e8e\u63a5\u8fd1\u8ba1\u91cf\u70b9\u65f6\uff0c\u6eb6\u6db2\u4e2dHAc\u5df2\u5f88\u5c11\uff0c\u800c\u751f\u6210\u7684NaAc\u6108\u6765\u6108\u591a\uff0c\u5927\u91cfNaAc\u7684\u5b58\u5728\u6291\u5236\u4e86HAc\u7684\u7535\u79bb\uff0c\u4f7f\u6eb6\u6db2\u4e2d\u7684H+\u79bb\u5b50\u6d53\u5ea6\u4e0b\u964d\u3002\u540c\u65f6NaAc\u7684\u6c34\u89e3\u4e0d\u65ad\u589e\u5f3a\uff0c\u6eb6\u6db2\u4e2d\u7684OH-\u6d53\u5ea6\u4e5f\u56e0\u800c\u589e\u5927\uff0c\u6240\u4ee5\u5f53\u6ef4\u5165NaOH\u6eb6\u6db219.98mL\u65f6\uff0c\u867d\u7136\u6eb6\u6db2\u8fd8\u5269\u4f590.02mLHAc\uff0c\u4f46\u6eb6\u6db2\u5df2\u5448\u78b1\u6027(pH=7.7)\uff0c\u56e0\u6b64\uff0c\u8fd9\u7c7b\u6ef4\u5b9a\u7a81\u8dc3\u90e8\u5206\u7684\u8d77\u70b9\u6bd4\u524d\u4e00\u7c7b\u6ef4\u5b9a\u8981\u5411\u4e0a\u79fb\u3002<\/p>\n\n\n\n \u3000\u30003)\u4ece\u56fe6.7\u53ef\u77e5\uff0c\u5728\u6ef4\u5b9a\u524d\uff0c0.1mol\/LHCl\u7684pH=2.9\uff0c\u5728\u5f00\u59cb\u6ef4\u5b9a\u540e\uff0c\u7531\u4e8e\u751f\u4ea7Ac-\u7684\u6c34\u89e3\uff0c\u964d\u4f4e\u4e86HAc\u7684\u7535\u79bb\u5ea6\u548c\u6eb6\u6db2\u4e2dH+\u6d53\u5ea6\uff0c\u6240\u4ee5\u8d77\u59cb\u6bb5\u66f2\u7ebf\u5761\u5ea6\u6bd4\u524d\u4e00\u7c7b\u578b\u5927\u5f97\u591a\u3002<\/p>\n\n\n\n \u3000\u3000\u7531\u4e8e\u6ef4\u5b9a\u7a81\u8dc3\u8303\u56f4\u5728pH=7.7~9.7\uff0c\u53ea\u6709\u915a\u915e\u7684\u53d8\u8272\u8303\u56f4\u5728\u6ef4\u5b9a\u7a81\u8dc3\u8303\u56f4\u4e4b\u5185\uff0c\u53ef\u4ee5\u9009\u62e9\u915a\u915e\u4f5c\u6307\u793a\u5242\u3002\u5f3a\u78b1\u6ef4\u5b9a\u5f31\u9178\u65f6\uff0cpH\u503c\u7a81\u8dc3\u7684\u5927\u5c0f\u9664\u4e86\u4e0e\u9178\u78b1\u7684\u6d53\u5ea6\u6709\u5173\u4e4b\u5916\uff0c\u8fd8\u4e0e\u5f31\u9178\u7684\u7535\u79bb\u5e38\u6570Ka\u5927\u5c0f\u6709\u5173\uff0c\u5f31\u9178\u7684\u7535\u79bb\u5e38\u6570\u6108\u5c0f\uff0c\u5373\u9178\u6027\u6108\u5f31\uff0c\u5219\u8ba1\u91cf\u70b9\u9644\u8fd1\u7a81\u8dc3\u6108\u5c0f\uff0c\u9009\u62e9\u6307\u793a\u5242\u7684\u8303\u56f4\u4e5f\u6108\u7a84\uff0c\u5982\u56fe6.8\u6240\u793a\u7684\u66f2\u7ebf\uff0c\u5373\u4e3a0.1mol\/LNaOH\u6ef4\u5b9a\u51e0\u79cd\u7535\u79bb\u5e38\u6570\u4e0d\u540c\u7684\u5f31\u9178\u7684\u60c5\u51b5\uff0c\u7b2c3\u6761\u66f2\u7ebf(Ka=10-5)\u662fNaOH\u6ef4\u5b9aHAc\uff0c\u7b2c4\u6761\u66f2\u7ebf(Ka=10-7)\u662f\u6ef4\u5b9a\u6bd4HAc\u66f4\u5f31\u7684\u9178\uff0c\u66f2\u7ebf\u5df2\u5f80\u4e0a\u79fb\uff0c\u7528\u915a\u915e\u4f5c\u6307\u793a\u5242\u5c31\u4e0d\u5408\u9002\u4e86\uff0c\u56e0\u4e3a\u672a\u5230\u8ba1\u91cf\u70b9\u65f6\u5c31\u51fa\u73b0\u4e86\u7ea2\u8272\uff0c\u4f1a\u9020\u6210\u8bef\u5dee\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u9009\u7528\u767e\u91cc\u915a\u915e\u8f83\u597d(\u5176\u53d8\u8272\u8303\u56f49.4\u5df2\u6ca1\u6709\u660e\u663e\u7684\u7a81\u8dc3\u90e8\u5206\uff0c\u56e0\u6b64\u4e5f\u5f88\u96be\u627e\u5230\u5408\u9002\u7684\u6307\u793a\u5242\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5c31\u78b1\u6ef4\u5b9a\u6cd5\u76f4\u63a5\u6d4b\u5b9a)\u3002<\/p>\n\n\n\n \u3000\u30002\u3001\u5f3a\u9178\u6ef4\u5b9a\u5f31\u78b1<\/p>\n\n\n\n \u3000\u3000\u5f3a\u9178\u6ef4\u5b9a\u5f31\u78b1\u7684\u6ef4\u5b9a\u66f2\u7ebf\u5982\u56fe6.9\u6240\u793a\uff0c\u5176\u6ef4\u5b9a\u66f2\u7ebf\u4e0e\u5f3a\u78b1\u6ef4\u5b9a\u5f31\u9178\u76f8\u4f3c\uff0c\u4ec5pH\u503c\u53d8\u5316\u76f8\u53cd\uff0c\u4f8b\u5982\u75280.1mol\/LHCl\u6ef4\u5b9a20mL0.1mol\/LNH3 H2O\uff0c\u7531\u4e8e\u53cd\u5e94\u751f\u6210\u7684\u5f3a\u9178\u5f31\u78b1\u76d0NH4Cl\u7684\u6c34\u89e3\uff0c\u8ba1\u91cf\u70b9\u65f6\u6eb6\u6db2\u5448\u9178\u6027\uff0c\u6ef4\u5b9a\u7a81\u8dc3\u8303\u56f4\u5728pH=6.3~4.3\u4e4b\u95f4\uff0c\u8ba1\u91cf\u70b9pH=5.3\uff0c\u6545\u5b9c\u9009\u7528\u7532\u57fa\u7ea2\u4e3a\u6307\u793a\u5242\uff0c\u7532\u57fa\u6a59\u4e5f\u53ef\u4ee5\u3002\u88ab\u6ef4\u5b9a\u7684\u7269\u8d28\u78b1\u6027\u6108\u5f31\uff0c\u5219\u7a81\u8dc3\u8303\u56f4\u6108\u5c0f\u3002\u4e00\u822c\u5730\u8bf4\uff0c\u5f53\u78b1\u7684\u6d53\u5ea6\u4e3a0.1mol\/L\u4ee5\u53caKb<10-7\u65f6(Kb\u8868\u793a\u5f31\u78b1\u7684\u7535\u79bb\u5e38\u6570)\uff0c\u4fbf\u65e0\u660e\u663e\u7a81\u8dc3\uff0c\u96be\u4ee5\u9009\u62e9\u6307\u793a\u5242\u3002<\/p>\n\n\n\n \u3000\u30001\u3001\u5f3a\u78b1\u6ef4\u5b9a\u5f31\u9178 \u3000\u3000\u4ee50.1000mol\/L\u7684NaOH\u6eb6\u6db2\u6ef4\u5b9a20.00Ml0.1000mol\/L\u7684HA …<\/p>\n<\/figure>\n\n\n\n
<\/figure>\n\n\n\n
<\/figure>\n\n\n\n
<\/figure>\n\n\n\n
<\/figure>\n\n\n\n
pH=9.7<\/p>\n\n\n\n<\/figure>\n\n\n\n
<\/figure>\n\n\n\n
<\/figure>\n\n\n\n
<\/figure>\n","protected":false},"excerpt":{"rendered":"