如何用95%酒精配制 配制50% 70%的酒精 95%的酒精怎么配成75%的酒精
\u5982\u4f55\u752895%\u9152\u7cbe\u914d\u5236 \u914d\u523650% 70%\u7684\u9152\u7cbe\u5148\u641e\u6e05\u695a\u4f60\u914d\u7f6e\u7684\u6d53\u5ea6\u662f\u8d28\u91cf\u6d53\u5ea6\u8fd8\u662f\u4f53\u79ef\u6d53\u5ea6\u5982\u679c\u662f\u8d28\u91cf\u6d53\u5ea6,\u5404\u79f0\u53d650g\u84b8\u998f\u6c34\u4e0e50g\u65e0\u6c34\u4e59\u9187,\u6df7\u5408\u5747\u5300\u5c31\u53ef\u4ee5\u5982\u679c\u662f\u4f53\u79ef\u6d53\u5ea6,\u5219\u8981\u901a\u8fc7\u91cf\u7b52\u91cf\u53d650ml\u84b8\u998f\u6c34\u4e0e50ml\u65e0\u6c34\u4e59\u9187\u6df7\u5408\u5747\u5300. \u5982\u679c\u4f60\u7528\u7684\u4e0d\u662f\u65e0\u6c34\u4e59\u9187,\u7406\u8bba\u4e0a\u4e59\u9187\u6d53\u5ea6\u5c0f\u4e8e\u4e8e50%\u7684,\u52a0\u4e59\u9187,\u5927\u4e8e50%,\u52a0\u6c34\u5177\u4f53\u6839\u636e\u63d0\u4f9b\u4e59\u9187\u7684\u51c6\u786e\u6d53\u5ea6\u6362\u7b97\u914d\u7f6e
26.67mL\u7684\u6c34\u7a00\u91ca\u5373\u53ef\u3002\u4f8b\u5982\u53d6100mL95\u9152\u7cbe\uff0c95/0.75=126.67\uff0c\u9700\u8981\u52a026.67mL\u7684\u6c34\uff0c\u5c31\u914d\u6210\u4e8675\u5ea6\u9152\u7cbe\u3002
\u9152\u7cbe\u7a00\u91ca,\u5c31\u662f\u628a\u9ad8\u6d53\u5ea6\u7684\uff0895%\uff09\u9152\u7cbe\uff08\u6709500\u6beb\u5347\u5305\u88c5\u7684\u300195%\u9152\u7cbe\uff09,\u52a0\u4e00\u5b9a\u4f53\u79ef\u6c34\u540e,\u914d\u5236\u6210\u4f4e\u6d53\u5ea6\u7684\uff08\u4f8b\u598275%\uff09\u9152\u7cbe\u7684\u8fc7\u7a0b\u300295%\u7684\u9152\u7cbe\u610f\u601d\u5c31\u662f\u9152\u7cbe\u4f53\u79ef\u5360\u6574\u4e2a\u6eb6\u6db2\u4f53\u79ef\u768495%\u3002\u4f8b\u5982100ml95%\u7684\u9152\u7cbe\u5c31\u662f\u9152\u7cbe95ml\u52a0\u51655ml\u84b8\u998f\u6c34\uff0c\u9152\u7cbe\uff1a\u6eb6\u6db2 = 95\uff1a100\u3002
\u5047\u8bbe\u5728100ml95%\u7684\u9152\u7cbe\u4e2d\u52a0\u5165Aml\u84b8\u998f\u6c34\u4f7f\u5176\u53d8\u6210\u4e8675%\u9152\u7cbe\uff0c\u90a3\u4e48\u6b64\u65f6\u6eb6\u6db2\u603b\u4f53\u79ef\u4e3a\uff08100+A\uff09ml\u3002\u90a3\u4e48\u914d\u7f6e75%\u9152\u7cbe\u9700\u8981\u6ee1\u8db3\uff1a95 /\uff08A+100\uff09=75/100\uff0c\u6c42\u51fa\uff1aA = 26.67ml\u3002
\u6269\u5c55\u8d44\u6599\uff1a
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2\u300195%\u7684\u9152\u7cbe\u7528\u4e8e\u64e6\u62ed\u7d2b\u5916\u7ebf\u706f\u3002\u8fd9\u79cd\u9152\u7cbe\u5728\u533b\u9662\u5e38\u7528\uff0c\u800c\u5728\u5bb6\u5ead\u4e2d\u5219\u53ea\u4f1a\u5c06\u5176\u7528\u4e8e\u76f8\u673a\u955c\u5934\u7684\u6e05\u6d01\u3002
3\u300170%\uff5e75%\u7684\u9152\u7cbe\u7528\u4e8e\u6d88\u6bd2\u3002\u8fd9\u662f\u56e0\u4e3a\uff0c\u8fc7\u9ad8\u6d53\u5ea6\u7684\u9152\u7cbe\u4f1a\u5728\u7ec6\u83cc\u8868\u9762\u5f62\u6210\u4e00\u5c42\u4fdd\u62a4\u819c\uff0c\u963b\u6b62\u5176\u8fdb\u5165\u7ec6\u83cc\u4f53\u5185\uff0c\u96be\u4ee5\u5c06\u7ec6\u83cc\u5f7b\u5e95\u6740\u6b7b\u3002\u82e5\u9152\u7cbe\u6d53\u5ea6\u8fc7\u4f4e\uff0c\u867d\u53ef\u8fdb\u5165\u7ec6\u83cc\uff0c\u4f46\u4e0d\u80fd\u5c06\u5176\u4f53\u5185\u7684\u86cb\u767d\u8d28\u51dd\u56fa\uff0c\u540c\u6837\u4e5f\u4e0d\u80fd\u5c06\u7ec6\u83cc\u5f7b\u5e95\u6740\u6b7b\u3002\u5176\u4e2d75%\u7684\u9152\u7cbe\u6d88\u6bd2\u6548\u679c\u6700\u597d\u3002
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5\u300125%\uff5e50%\u7684\u9152\u7cbe\u53ef\u7528\u4e8e\u7269\u7406\u9000\u70ed\u3002\u9ad8\u70e7\u60a3\u8005\u53ef\u7528\u5176\u64e6\u8eab\uff0c\u8fbe\u5230\u964d\u6e29\u7684\u76ee\u7684\u3002\u56e0\u4e3a\u7528\u9152\u7cbe\u64e6\u62ed\u76ae\u80a4\uff0c\u80fd\u4f7f\u60a3\u8005\u7684\u76ae\u80a4\u8840\u7ba1\u6269\u5f20\uff0c\u589e\u52a0\u76ae\u80a4\u7684\u6563\u70ed\u80fd\u529b\uff0c\u9152\u7cbe\u84b8\u53d1\uff0c\u5438\u70ed\uff0c\u4f7f\u75c5\u4eba\u4f53\u8868\u9762\u6e29\u5ea6\u964d\u4f4e\uff0c\u75c7\u72b6\u7f13\u89e3\u3002
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\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-\u9152\u7cbe
打,现在有100G95%的酒精,100*95%=95G纯酒精.
95/50%=190G,也就是说你需要加水95G.然原来就有水5G所以只要加水90G就用这种方法去配制就好了.
