95%的酒精，配置成75%.怎么算具体点怎么算 怎样把 95%浓度的酒精 配置成 75%浓度的酒精
95%\u7684\u9152\u7cbe\u600e\u4e48\u914d\u621075%\u7684\u9152\u7cbe26.67mL\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
\u4e0d\u540c\u6d53\u5ea6\u9152\u7cbe\u7684\u5e94\u7528\uff1a
1\u3001\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
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
4\u300140%\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
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
\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
\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\u3002
\u4f8b\u5982\u914d\u5236100\u6beb\u5347 75%\u9152\u7cbe \uff1a\u8ba1\u7b97\u5f0f \u6c42\u53d695%\u9152\u7cbe\u7684\u4f53\u79ef V =( 75%x100ml)/95% = 78.9 ml \u3002
\u7a00\u91ca\u64cd\u4f5c\uff1a\u5728100 \u6beb\u5347\u7684\u5e72\u71e5\u5e72\u51c0\u7684\u91cf\u7b52\u4e2d\u52a0\u516578.9 ml .95%\u9152\u7cbe,\u7528\u84b8\u998f\u6c34\u7a00\u91ca\u81f3100\u6beb\u5347\u7684\u523b\u7ebf.\u7136\u540e\u8f6c\u79fb\u5230\u8bd5\u5242\u74f6\u4e2d,\u8d34\u4e0a\u6807\u7b7e\u3002
\u6269\u5c55\u8d44\u6599\uff1a
\u6eb6\u5242\u662f\u4e00\u79cd\u53ef\u4ee5\u6eb6\u89e3\u56fa\u4f53\uff0c\u6db2\u4f53\u6216\u6c14\u4f53\u6eb6\u8d28\u7684\u6db2\u4f53\uff0c\u7ee7\u800c\u6210\u4e3a\u6eb6\u6db2\u3002\u5728\u65e5\u5e38\u751f\u6d3b\u4e2d\u6700\u666e\u904d\u7684\u6eb6\u5242\u662f\u6c34\u3002\u800c\u6240\u8c13\u6709\u673a\u6eb6\u5242\u5373\u662f\u5305\u542b\u78b3\u539f\u5b50\u7684\u6709\u673a\u5316\u5408\u7269\u6eb6\u5242\u3002\u6eb6\u5242\u901a\u5e38\u62e5\u6709\u6bd4\u8f83\u4f4e\u7684\u6cb8\u70b9\u548c\u5bb9\u6613\u6325\u53d1\u3002\u6216\u662f\u53ef\u4ee5\u7531\u84b8\u998f\u6765\u53bb\u9664\uff0c\u4ece\u800c\u7559\u4e0b\u88ab\u6eb6\u7269\u3002
\u56e0\u6b64\uff0c\u6eb6\u5242\u4e0d\u53ef\u4ee5\u5bf9\u6eb6\u8d28\u4ea7\u751f\u5316\u5b66\u53cd\u5e94\u3002\u5b83\u4eec\u5fc5\u987b\u4e3a\u4f4e\u6d3b\u6027\u7684\u3002\u6eb6\u5242\u53ef\u4ece\u6df7\u5408\u7269\u8403\u53d6\u53ef\u6eb6\u5316\u5408\u7269\uff0c\u6700\u666e\u904d\u7684\u4f8b\u5b50\u662f\u4ee5\u70ed\u6c34\u51b2\u6ce1\u5496\u5561\u6216\u8336\u3002\u6eb6\u5242\u901a\u5e38\u662f\u900f\u660e\uff0c\u65e0\u8272\u7684\u6db2\u4f53\uff0c\u4ed6\u4eec\u5927\u591a\u90fd\u6709\u72ec\u7279\u7684\u6c14\u5473\u3002
\u6eb6\u6db2\u7684\u6d53\u5ea6\u53d6\u51b3\u4e8e\u6eb6\u89e3\u5728\u6eb6\u5242\u5185\u7684\u7269\u8d28\u7684\u591a\u5c11\u3002\u6eb6\u89e3\u5ea6\u5219\u662f\u6eb6\u5242\u5728\u7279\u5b9a\u6e29\u5ea6\u4e0b\uff0c\u53ef\u4ee5\u6eb6\u89e3\u6700\u591a\u591a\u5c11\u7269\u8d28\u3002
\u6709\u673a\u6eb6\u5242\u4e3b\u8981\u7528\u4e8e\u5e72\u6d17\uff08\u4f8b\u5982\u56db\u6c2f\u4e59\u70ef\uff09\uff0c\u4f5c\u6d82\u6599\u7a00\u91ca\u5242\uff08\u4f8b\u5982\u7532\u82ef\u3001\u9999\u8549\u6c34\u3001\u677e\u9999\u6c34\u3001\u677e\u8282\u6cb9\uff09\uff0c\u4f5c\u6d17\u7532\u6c34\u6216\u53bb\u9664\u80f6\u6c34\uff08\u4f8b\u5982\u4e19\u916e\uff0c\u918b\u9178\u7532\u916f\uff0c\u918b\u9178\u4e59\u916f\uff09\uff0c\u9664\u9508\uff08\u4f8b\u5982\u5df1\u70f7\uff09\uff0c\u4f5c\u6d17\u6d01\u7cbe\uff08\u67e0\u6aac\u7cbe\uff09\uff0c\u7528\u4e8e\u9999\u6c34\uff08\u9152\u7cbe\uff09\u8ddf\u7528\u4e8e\u5316\u5b66\u5408\u6210\u3002
\u53c2\u8003\u8d44\u6599\uff1a
\u7a00\u91ca_\u767e\u5ea6\u767e\u79d1
那么水5毫升，95毫升酒精，添加水x 毫升。
95/（100+x）=0.75
x=80/3 毫升。
绛旓細濡備綍鐢95%鐨勯厭绮閰嶅埗鎴75%鐨勯厭绮撅紵棣栧厛锛屾垜浠渶瑕佺悊瑙ｉ厤鍒堕厭绮剧殑鍩烘湰鍘熺悊銆傞厤鍒堕厭绮炬椂锛屾垜浠纭繚閰嶅埗鍚庣殑婧舵恫涓厭绮剧殑鐗╄川鐨勯噺淇濇寔涓嶅彉銆傝繖鎰忓懗鐫锛屾棤璁烘垜浠浣曟贩鍚堬紝閰掔簿鐨勬婚噺鍦ㄩ厤鍒跺墠鍚庡簲璇ユ槸涓鏍风殑銆傛帴涓嬫潵锛屾垜浠彲浠ヤ娇鐢ㄤ竴涓畝鍗曠殑鍏紡鏉ヨ绠楀浣曢厤鍒95%鐨勯厭绮炬垚涓75%鐨勯厭绮撅細95%*A = 75%*B...
绛旓細鍙互閫氳繃鍔犲叆钂搁姘寸殑鏂瑰紡灏95%鐨勯厭绮閰鎴75%鐨勯厭绮俱傚叿浣撴楠ゅ涓嬶細1. 璁＄畻閰嶆瘮锛氱‘瀹氶渶瑕侀厤鍒75%閰掔簿鐨勪綋绉紝鐒跺悗鏍规嵁閰掔簿娴撳害璁＄畻鍏紡璁＄畻鍑烘墍闇95%閰掔簿鐨勪綋绉紝浠ュ強闇瑕佸姞鍏ョ殑钂搁姘翠綋绉傝绠楀叕寮忎负锛氭墍闇95%閰掔簿鐨勪綋绉 = 鎵闇75%閰掔簿鐨勪綋绉 脳 75% / 95%銆傚叾浣欓儴鍒嗕负闇瑕佹坊鍔犵殑钂搁姘翠綋绉...
绛旓細95涔欓唶閰嶅埗75涔欓唶璁＄畻鍏紡鏄95%閰掔簿鐨勪綋绉紝v=75脳100%姣崌闄や互95%=78.9姣崌銆傞氳繃绋閲婃柟娉曪紝鍙互鎶95%鐨勯厭绮剧█閲鎴75%锛屼緥濡傚彇100姣崌95%鐨勯厭绮撅紝95梅0.75=126.67, 闇瑕佸姞26.67姣崌鐨勬按锛屽氨閰嶆垚浜75搴︾殑閰掔簿銆傞厭绮剧█閲婂氨鏄妸楂樻祿搴︾殑閰掔簿锛屽皢涓瀹氫綋绉按鍚庨厤鍒舵垚浣庢祿搴︾殑閰掔簿鐨勮繃绋嬨備緥濡閰嶇疆...
绛旓細棣栧厛姹傚嚭鐧惧垎涔涔濆崄浜旈厭绮涓川閲忥紝灏辨槸鐢ㄨ繖鐡堕厭绮剧殑璐ㄩ噺锛屼箻浠ョ櫨鍒嗕箣涔濆崄浜旓紝灏辨槸杩欑摱閰掔簿婧舵恫涓厭绮剧殑璐ㄩ噺銆傝鎯閰嶇疆鍑烘祿搴︿负鐧惧垎涔涓冨崄浜旂殑閰掔簿锛灏辫绠楀嚭闇瑕佸線鐧惧垎涔嬩節鍗佷簲鐨勯厭绮句腑鍔犲叆姘寸殑璐ㄩ噺锛屽厛鐢ㄤ笂闈㈡眰鍔╃殑閰掔簿鐨勮川閲忥紝闄や互鐧惧垎涔75锛屽氨鑳藉姹傚嚭娴撳害鐧惧垎涔嬩竷鍗佷簲鐨勯厭绮剧殑璐ㄩ噺锛岀敤姹傚嚭鐨勮繖涓川閲...
绛旓細绋閲婂嵆鍙備緥濡傚彇100mL95閰掔簿锛95/0.75=126.67锛岄渶瑕佸姞26.67mL鐨勬按锛屽氨閰嶆垚浜75搴﹂厭绮俱傞厭绮剧█閲,灏辨槸鎶婇珮娴撳害鐨勶紙95%锛夐厭绮撅紙鏈500姣崌鍖呰鐨勩95%閰掔簿锛,鍔犱竴瀹氫綋绉按鍚,閰嶅埗鎴愪綆娴撳害鐨勶紙渚嬪75%锛夐厭绮剧殑杩囩▼銆備緥濡傞厤鍒100姣崌 75%閰掔簿 锛氳绠楀紡 姹傚彇95%閰掔簿鐨勪綋绉 V =( 75%x100ml)/...
绛旓細500姣崌闇瑕佸姞鍏133.33ml鐨勮捀棣忔按灏卞彲浠ラ厤鎴75%鐨勯厭绮浜嗐備互500姣崌95%閰掔簿閰嶆垚75%閰掔簿涓轰緥锛500ml鐨95锛閰掔簿涓惈閰掔簿锛500脳95锛咃紳475锛75%閰掔簿涓嫢鏈475鍏閰掔簿锛鍏舵婚噸閲忎负475梅75锛咃紳633.33ml锛屾墍浠ラ渶瑕佸鍔犳按鐨勬婚噺涓猴細633.33锛500锛133.33ml銆傦紙钂搁姘达級...
绛旓細鍔犳按鍟 璁95%鐨勯厭绮鏈塜,鍔燳鐨勬按閰嶇疆鎴75%閰掔簿 0.95X=0.75锛圶+Y锛0.2X=0.75Y Y=3.75X
绛旓細100姣崌鐨95%閰掔簿鍔犱笂26.67姣崌鐨勮捀棣忔按銆傞厭绮剧█閲婂氨鏄妸楂樻祿搴︾殑閰掔簿锛屽皢涓瀹氫綋绉按鍚庨厤鍒舵垚浣庢祿搴︾殑閰掔簿鐨勮繃绋嬨備緥濡閰嶇疆100姣崌75%鐨勯厭绮撅紝璁＄畻鍏紡鏄95%閰掔簿鐨勪綋绉紝v锛95%閰掔簿鐨勪綋绉級=75脳100%姣崌闄や互95%=78.9姣崌銆傜█閲婃搷浣滃氨鏄湪100姣崌鐨勫共鐕ュ共鍑鐨勯噺绛掍腑鍔犲叆78.9姣崌鐨95%鐨勯厭绮撅紝鐢...
绛旓細95%閰掔簿鎸囩殑鏄厭绮剧殑娴撳害鍊硷紝浣跨敤浣撶Н鍒嗘暟%琛ㄨ揪鐨勶紝涔熷氨鏄100姣崌鐨勬憾娑查噷闈㈠惈鏈95%姣崌鐨勯厭绮撅紝鑰岄厭绮剧█閲婂氨瑕佸皢楂樻祿搴﹂厭绮惧姞涓瀹氫綋绉殑姘锛岄厤缃垚浣庢祿搴﹂厭绮剧殑杩囩▼锛屼緥濡500姣崌95%閰掔簿閰嶇疆鎴75%閰掔簿闇瑕佸姞姘寸殑浣撶Н鏄細500脳(95/75-1)=133姣崌銆傚彟澶栬嫢鏄兂瑕佺█閲80姣崌鐨95%閰掔簿锛屽彲浠ョ敤鍏紡寰楀嚭...
绛旓細鍙100姣崌95%鐨勯厭绮撅紝95梅0.75=126.67,闇瑕佸姞26.67姣崌鐨勬按锛屽氨閰嶆垚浜75搴︾殑閰掔簿銆傞厭绮剧█閲婂氨鏄妸楂樻祿搴︾殑閰掔簿锛屽皢涓瀹氫綋绉按鍚庨厤鍒舵垚浣庢祿搴︾殑閰掔簿鐨勮繃绋嬨備緥濡閰嶇疆100姣崌75%鐨勯厭绮撅紝璁＄畻鍏紡鏄95%閰掔簿鐨勪綋绉紝v=75脳100%姣崌闄や互95%=78.9姣崌銆傜█閲婃搷浣滐紝灏辨槸鍦100姣崌鐨勫共鐕ュ共鍑鐨勯噺绛掍腑...
