算酒精浓度,可以的话 要计算步骤 酒精度数如何计算?
\u9152\u7cbe\u6d53\u5ea6\u8ba1\u7b97\u8bd5\u5242\u7ea7\u7684\u4e59\u9187\uff08\u9152\u7cbe\uff09\uff0c\u6709\u65e0\u6c34\u4e59\u9187\u548c75%\u9152\u7cbe \uff1b
75%\u9152\u7cbe\u7684\u6d53\u5ea6\u662f\u7528\u4f53\u79ef\u5206\u6570\u8868\u793a\u7684\uff0c\u5373\u670975\u4efd\u4f53\u79ef\u7684\u9152\u7cbe\uff0c25\u4efd\u4f53\u79ef\u7684\u6c34\u3002
\u9152\u7684\u5ea6\u6570\u8868\u793a\u9152\u4e2d\u542b\u4e59\u9187\u7684\u4f53\u79ef\u767e\u5206\u6bd4\uff0c\u901a\u5e38\u662f\u4ee520\u2103\u65f6\u7684\u4f53\u79ef\u6bd4\u8868\u793a\u7684\uff0c\u598250\u5ea6\u7684\u9152\uff0c\u8868\u793a\u5728100\u6beb\u5347\u7684\u9152\u4e2d\uff0c\u542b\u6709\u4e59\u918750\u6beb\u5347(20\u2103)\uff0c\u9152\u7cbe\u5ea6\u4e00\u822c\u662f\u4ee5\u5bb9\u91cf\u6765\u8ba1\u7b97\uff0c\u6545\u5728\u9152\u7cbe\u6d53\u5ea6\u540e\uff0c\u4f1a\u52a0\u4e0a\u201cVol. \u201d\u4ee5\u793a\u4e0e\u91cd\u91cf\u8ba1\u7b97\u4e4b\u533a\u5206\u3002
\u5564\u9152\u7684\u5ea6\u6570\u5219\u4e0d\u8868\u793a\u4e59\u9187\u7684\u542b\u91cf\uff0c\u800c\u662f\u8868\u793a\u5564\u9152\u751f\u4ea7\u539f\u6599\uff0c\u4e5f\u5c31\u662f\u9ea6\u82bd\u6c41\u7684\u6d53\u5ea6\uff0c\u4ee512\u5ea6\u7684\u5564\u9152\u4e3a\u4f8b\uff0c\u662f\u9ea6\u82bd\u6c41\u53d1\u9175\u524d\u6d78\u51fa\u7269\u7684\u6d53\u5ea6\u4e3a12%(\u91cd\u91cf\u6bd4)\u3002\u9ea6\u82bd\u6c41\u4e2d\u7684\u6d78\u51fa\u7269\u662f\u591a\u79cd\u6210\u5206\u7684\u6df7\u5408\u7269\uff0c\u4ee5\u9ea6\u82bd\u7cd6\u4e3a\u4e3b\u3002
\u5564\u9152\u7684\u9152\u7cbe\u662f\u7531\u9ea6\u82bd\u7cd6\u8f6c\u5316\u800c\u6765\u7684\uff0c\u7531\u6b64\u53ef\u77e5\uff0c\u9152\u7cbe\u5ea6\u4f4e\u4e8e12\u5ea6\u3002\u5982\u5e38\u89c1\u7684\u6d45\u8272\u5564\u9152\uff0c\u9152\u7cbe\u542b\u91cf\u4e3a3\uff0e3-3\uff0e8%\uff1b\u6d53\u8272\u5564\u9152\u9152\u7cbe\u542b\u91cf\u4e3a4-5%\u3002
\u6269\u5c55\u8d44\u6599\uff1a
\u4f53\u79ef\u5206\u657099.5%\u4ee5\u4e0a\u7684\u9152\u7cbe\u79f0\u4e3a\u65e0\u6c34\u9152\u7cbe\u3002\u751f\u7269\u5b66\u4e2d\u7684\u7528\u9014\uff1a\u53f6\u7eff\u4f53\u4e2d\u7684\u8272\u7d20\u80fd\u6eb6\u5728\u6709\u673a\u6eb6\u5242\u65e0\u6c34\u4e59\u9187\uff08\u6216\u4e19\u916e\uff09\u4e2d\uff0c\u6240\u4ee5\u7528\u65e0\u6c34\u4e59\u9187\u53ef\u4ee5\u63d0\u53d6\u53f6\u7eff\u4f53\u4e2d\u7684\u8272\u7d20\u3002
95%\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
70%\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
40%\uff5e50%\u7684\u9152\u7cbe\u53ef\u9884\u9632\u8925\u75ae\u3002\u957f\u671f\u5367\u5e8a\u60a3\u8005\u7684\u80cc\u3001\u8170\u3001\u81c0\u90e8\u56e0\u957f\u671f\u53d7\u538b\u53ef\u5f15\u53d1\u8925\u75ae\uff0c\u5982\u6309\u6469\u65f6\u5c06\u5c11\u8bb840%\uff5e50%\u7684\u9152\u7cbe\u5012\u5165\u624b\u4e2d\uff0c\u5747\u5300\u5730\u6309\u6469\u60a3\u8005\u53d7\u538b\u90e8\u4f4d\uff0c\u5c31\u80fd\u8fbe\u5230\u4fc3\u8fdb\u5c40\u90e8\u8840\u6db2\u5faa\u73af\uff0c\u9632\u6b62\u8925\u75ae\u5f62\u6210\u7684\u76ee\u7684\u3002
25%\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
\u6ce8\u610f\uff1a\u9152\u7cbe\u6d53\u5ea6\u4e0d\u53ef\u8fc7\u9ad8\uff0c\u5426\u5219\u53ef\u80fd\u4f1a\u523a\u6fc0\u76ae\u80a4\uff0c\u5e76\u5438\u6536\u8868\u76ae\u5927\u91cf\u7684\u6c34\u5206\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-\u9152\u7cbe\u5ea6
所以,混合后的酒精浓度为:500/(500+300)=62.5%
则,不考虑酒精挥发和无故损耗之类的因素,得到的混合酒精溶液中酒精浓度为62.5%
(500x70%+300x50%)÷(500+300)=62.5%
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