95%酒精500毫升配成75%应加?水? 95%的酒精怎么配成75%的酒精
95%\u9152\u7cbe500\u6beb\u5347\u914d\u5236\u621075%\u7684\u9152\u7cbe\u9700\u8981\u52a0\u591a\u5c11\u6beb\u5347\u6c34133\u6beb\u5347\u3002
\u9152\u7cbe\u6eb6\u6db2\u662f\u9152\u7cbe\u6eb6\u4e8e\u6c34\uff0c\u56e0\u6b64\u5bc6\u5ea6\u603b\u5c0f\u4e8e1g/cm3\uff0c\u8bbe75%\u9152\u7cbe\u6eb6\u6db2\u4e3aX ml95%\u9152\u7cbe\u5bc6\u5ea6\u5c0f\uff08p\u5c0f g/cm3\uff09\uff0c75%\u9152\u7cbe\u5bc6\u5ea6\u5927\uff08p\u5927 g/cm3\uff09 \u767e\u5206\u6570\u5747\u4e3a\u8d28\u91cf\u5206\u6570\u3002
\u56e0\u6b64\u670995%*p\u5c0f*500=p\u5927*X*75% X=500*95*p\u5c0f/75*p\u5927\uff0c75%\u7684\u9152\u7cbe\u7684\u8d28\u91cf\u4e3a500*95*p\u5c0f/75 g \u800c\u539f\u676595%\u7684\u9152\u7cbe\u7684\u8d28\u91cf\u4e3a500*p\u5c0f\u3002
\u6839\u636e\u8d28\u91cf\u5b88\u6052\uff0c\u5f97\u77e5\u52a0\u5165\u7684\u6c34\u7684\u8d28\u91cf\u4e3a75%\u9152\u7cbe\u7684\u8d28\u91cf-95%\u9152\u7cbe\u7684\u8d28\u91cf=20*500*p\u5c0f/75g\uff0c\u6c34\u7684\u5bc6\u5ea6\u4e3a1g/cm3\uff0c\u6545\u52a0\u5165\u7684\u6c34\u7684\u4f53\u79ef\u4e3a 20*500*p\u5c0f/75 ml\uff0c\u6240\u4ee5\u7ea6\u7b49\u4e8e133.33ml \u3002
\u6269\u5c55\u8d44\u6599\uff1a
\u6ce8\u610f\u4e8b\u9879\uff1a
\u9152\u7cbe\u5c31\u662f\u4e59\u9187\uff0c\u4e0d\u540c\u7684\u6d53\u5ea6\u7684\u9152\u7cbe\u6709\u4e0d\u540c\u7684\u529f\u6548\u4e0e\u4f5c\u7528\u300270%-75%\u7684\u9152\u7cbe\u6eb6\u6db2\u6740\u83cc\u529b\u6700\u5f3a\uff0c\u56e0\u4e3a\u6d53\u5ea6\u8fc7\u9ad8\uff0c\u53ef\u4f7f\u83cc\u4f53\u8868\u9762\u86cb\u767d\u51dd\u56fa\uff0c\u800c\u4f7f\u9152\u7cbe\u4e0d\u6613\u5411\u5185\u900f\u5165\uff0c\u59a8\u788d\u5176\u6740\u83cc\u6548\u529b\uff0c\u4e3b\u8981\u7528\u4e8e\u76ae\u80a4\u53ca\u5668\u68b0\u6d88\u6bd2\u3002
40%-50%\u7684\u9152\u7cbe\u53ef\u4f7f\u8840\u7ba1\u6269\u5f20\uff0c\u589e\u52a0\u8840\u6db2\u5faa\u73af\uff0c\u7528\u4e8e\u64e6\u62ed\u4e45\u5367\u75c5\u5e8a\u7684\u75c5\u4eba\uff0c\u53ef\u4ee5\u9884\u9632\u8925\u75ae\u7684\u53d1\u751f\u300220%-30%\u7684\u9152\u7cbe\u64e6\u6d74\uff0c\u7528\u4e8e\u9ad8\u70ed\u75c5\u4eba\u7269\u7406\u9000\u70ed\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-75%\u9152\u7cbe
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-\u533b\u7528\u9152\u7cbe
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-\u6c34
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
\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
加水=633-500=133毫升
酒精=500×95%=475毫升
现在=475÷75%≈633毫升
加水=633-500=133毫升
绝对是没错的
称量：500*95%=475ml乙醇
量取475/75%=633ml
H2O=633ml-475ml=158ml
绛旓細浠500姣崌95%閰掔簿閰嶆垚75%閰掔簿涓轰緥锛500ml鐨95%閰掔簿涓惈閰掔簿锛50095%=475.75%閰掔簿涓嫢鏈475鍏嬮厭绮锛屽叾鎬婚噸閲忎负47575%=633.33ml锛屾墍浠ラ渶瑕佸鍔犳按鐨勬婚噺涓猴細633.33-500=133.33ml銆傜櫨鍒嗕箣涔濆崄浜旂殑閰掔簿鎬庝箞鍏戞垚75 浠500姣崌95%閰掔簿閰嶆垚75%閰掔簿涓轰緥锛500ml鐨95%閰掔簿涓惈閰掔簿锛50095%=475.鍔犲叆133...
绛旓細1. 棣栧厛锛屾垜浠渶瑕佺悊瑙ｉ鐩腑鐨勪袱涓叧閿蹇碉細95%鐨勯厭绮惧拰75%鐨勯厭绮俱傝繖鎰忓懗鐫鍦ㄦ瘡100姣崌婧舵恫涓紝95%鐨勯厭绮惧惈鏈95姣崌鐨勭函閰掔簿锛岃75%鐨勯厭绮惧惈鏈75姣崌鐨勭函閰掔簿銆2. 棰樼洰瑕佹眰鎴戜滑灏95%鐨閰掔簿閰嶆垚75%鐨勯厭绮撅紝骞朵笖灏嗘渶缁堢殑婧舵恫鐏岃鍒颁竴涓500姣崌鐨勭摱瀛愰噷銆3. 涓轰簡璁＄畻闇瑕佹坊鍔犲灏戞按锛屾垜浠彲浠ヤ娇鐢...
绛旓細绛旓細鎶395姣崌95%鐨閰掔簿鍔105姣崌钂搁姘村嵆鍙埗鍙500姣崌75%鐨勯厭绮俱
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%鐨勯厭绮句簡銆備互500姣崌95%閰掔簿閰嶆垚75%閰掔簿涓轰緥锛500ml鐨95锛呴厭绮句腑鍚厭绮撅細500脳95锛咃紳475锛75%閰掔簿涓嫢鏈475鍏嬮厭绮撅紝鍏舵婚噸閲忎负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...
绛旓細鎴戜滑涔犳儻璇寸殑 95锛呬笌75锛 鐨勯厭绮 涓鑸寚鐨 浣撶Н鍒嗘暟锛堝 鏄川閲忓垎鏁 闇瑕佺煡閬撳瘑搴︼級璁惧厠閰嶅埗 V 姣崌75锛呴厭绮 鏍规嵁婧惰川涓嶅彉 鍒 500 * 95% = V * 75 寰 V = 633.33 姣崌 鎵浠 鐢500姣崌95锛鐨勯厭绮惧彲浠ラ厤鍒 633.33 姣崌 75锛 閰掔簿 ...
绛旓細绾厭绮=500脳0.95=475(ml)銆75搴﹂厭绮=475梅0.75=633.33(ml)銆傞渶鍔犳按=633.33-500=133.33(ml)銆備緥濡傞厤鍒100姣崌锛75%閰掔簿 锛氳绠楀紡姹傚彇95%閰掔簿鐨勪綋绉 V =( 75%x100ml)/95% = 78.9 ml 銆傜█閲婃搷浣滐細鍦100姣崌鐨勫共鐕ュ共鍑鐨勯噺绛掍腑鍔犲叆78.9 ml .95%閰掔簿锛岀敤钂搁姘寸█閲婅嚦100姣崌鐨勫埢绾...
绛旓細X=500*95*p灏/75*p澶э紝75%鐨勯厭绮剧殑璐ㄩ噺涓500*95*p灏/75 g 鑰屽師鏉95%鐨勯厭绮剧殑璐ㄩ噺涓500*p灏忋傛牴鎹川閲忓畧鎭掞紝寰楃煡鍔犲叆鐨勬按鐨勮川閲忎负75%閰掔簿鐨勮川閲-95%閰掔簿鐨勮川閲=20*500*p灏/75g锛屾按鐨勫瘑搴︿负1g/cm3锛屾晠鍔犲叆鐨勬按鐨勪綋绉负 20*500*p灏/75 ml锛屾墍浠ョ害绛変簬133.33ml 銆
绛旓細500脳75%梅95%=394.74ml锛500-394.74=105.26ml锛屼篃灏辨槸鍦500ml鐨勭摱瀛愰噷鍔犲叆95%閰掔簿394.74ml锛屽啀鍔犲叆105.26ml鐨姘达紝閰嶇疆鏄厭绮炬祿搴︽濂戒负75%銆
绛旓細鐧惧垎涔嬩節鍗佷簲閰掔簿500姣崌閰嶆垚鐧惧垎涔嬩竷鍗佷簲搴斿姞澶氬皯姘淬傝В鏋愶細500脳95%=475锛堟鍗囷級475梅75%=633鍙1/3锛堟鍗囷級633鍙1/3-500=133鍙1/3锛堟鍗囷級绛旓細搴斿姞姘133鍙1/3姣崌銆
绛旓細500*95%=(500+x)*75%锛寈=133.3姣崌銆75%鐨勯厭绮撅紙浣撶Н鍒嗘暟锛夊彲鐢ㄤ簬鐨偆娑堟瘨锛屼絾涓嶅彲鐢ㄤ簬榛忚啘鍜屽ぇ鍒涢潰鐨勬秷姣掋傚湪鐢熺墿璇曢獙涓婏紝寰敓鐗╃伃鑿屽彲浠ラ噰鍙栧共鐑伃鑿岋紝婀跨儹鐏弻锛屾煇浜涘鏂欏埗鍝佽瘯楠屽悗锛屼负浜嗛槻姝㈡墿澶ф薄鏌擄紝鍙互鍏堝湪75%閰掔簿鍐呮蹈娉24灏忔椂锛岀粏鑿岀湡鑿岀瓑閫氬父灏卞彲浠ヨ鏉姝汇傛棩甯哥敓娲讳腑锛屽父瑙佷竴浜涗汉鐢ㄥ尰鐢...
