如何将5ml溶液稀释5倍？ 怎样稀释二十倍？取5ml溶液，放入100ml的容量瓶，是多少...
250\u6beb\u5347\u600e\u6837\u7a00\u91ca5\u500d\u7a00\u91ca\u4e94\u500d\u7684\u7ed3\u679c\u662f\uff1a\u7a00\u91ca\u540e\u7684\u4f53\u79ef\u5f97\u662f\u539f\u6765\u4f53\u79ef\u7684\u4e94\u500d\u3002
\u8bbe\u539f\u6eb6\u5ea6\u4e3ax\uff0c\u7a00\u91ca\u540e\u6eb6\u6db2\u4f53\u79ef\u4e3ah\u3002
250x=\uff08x/5\uff09*h
\u5f97\uff1ah=1250ml
d=1250-250=1000 ml
\u6240\u4ee5\uff0c\u9700\u8981\u52a0\u51651000 ml \u84b8\u998f\u6c34\u3002
\u6709250ml\u836f\u6db2\uff0c\u90a3\u7a00\u91ca5\u500d\u540e\u7684\u4f53\u79ef\u662f1250ml\uff0c\u90a3\u4e48\u4f60\u9700\u8981\u52a0\u7684\u6c34\u7684\u91cf\u662f1250-250=1000ml\u3002
\u6240\u4ee5,\u52a0\u51651000ml\u6c34\uff08\u6216\u662f\u6240\u7528\u7684\u5176\u4ed6\u7a00\u91ca\u7528\u6eb6\u5242\uff09,250ml\u836f\u6db2\u5c31\u7a00\u91ca\u4e865\u500d\u4e86\u3002
\u6269\u5c55\u8d44\u6599\uff1b
\u6eb6\u5242
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\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1b\u767e\u5ea6\u767e\u79d1-\u7a00\u91ca
20
体积比还是质量比？体积比：1份+4份的溶剂。
质量比：5毫升称重，加入4倍质量的溶剂。
加20ml溶剂。。。
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绛旓細鏈鍙互鏈夊绉嶈璁★紝鍏抽敭鏄師娑茬█閲婂埌鍒荤嚎鐨勫閲忕摱鐨勪綋绉槸澶氬皯銆傘1銆戜互涓嬫槸涓绉嶆柟妗堬紝瀹归噺鐡剁殑浣撶Н涓10ml锛1銆佸師娑茬█閲婂埌鍒荤嚎鐨勫閲忕摱鐨勪綋绉槸10ml锛氬師娑插惈閲忔槸5/10= 0.5 锛2銆佸啀鍙绋閲婃憾娑5ml閲岋紝鍚師娑5 x 0.5 = 2.5 3銆佸簲璇ュ湪绋閲 10鍊锛屽嵆涓0.25銆傛墍浠ュ簲璇ュ姞45ml姘达紝鍗充负50ml...
绛旓細绋閲婄殑闂锛岀█閲婂灏戝嶆尯濂界悊瑙ｇ殑锛屾瘮濡1ml婧舵恫鍒50ml锛岄偅灏辨槸绋閲婁簡50鍊嶏紝鍐嶆瘮濡5ml鍒50ml锛岄偅灏辨槸绋閲婁簡10鍊嶏紝鍏蜂綋瀹屽叏鐨勮瘽鍙互杩欐牱绠楋紝绋閲婂鏁=绋閲婂悗鐨勪綋绉/绉诲彇鍘熸憾娑茬殑浣撶Н锛涙垨鑰呯█閲婂嶆暟=鍘熸憾娑叉祿搴/绋閲婂悗婧舵恫娴撳害銆傜劧鍚庤璇磋壊璋辨暟鎹鐞嗙殑闂锛屼竴鑸彲浠鎶鎵寰楃殑鍥捐氨鎵撳嵃鍑烘潵锛屽皢鏁版嵁褰曞叆exc...
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绛旓細閲娑锛氱敤5mL閲忕瓛閲忓彇98%鐨勬祿纭吀銆绋閲锛氶変竴閫傚綋澶у皬鐨勬磥鍑鐑ф澂锛屽厛鍔犲叆绾20mL钂搁姘达紙绾﹂厤鍒舵讳綋绉殑1/5锛夛紝鐒跺悗鎶閲忓ソ鐨勬祿纭吀缂撶紦鍊掑叆姘翠腑锛岃竟鍊掕竟鎼呮媽銆傚喎鍗磋嚦瀹ゆ俯銆傜Щ娑诧細灏嗛厤鍒跺ソ鐨勬祿纭吀娌跨幓鐠冩灏忓績鍊掑叆瀹归噺鐡朵腑锛屾礂娑ょ儳鏉拰鐜荤拑妫2-3娆★紙姣忔绾︾敤15mL钂搁姘达級锛屾瘡娆℃礂娑ゆ恫閮芥部鐜荤拑妫掓敞鍏...
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绛旓細姣忔敮鏍囧噯瀹娑鐢20姣崌婧跺墏绋閲銆
绛旓細160渭g/ml * 20ml / 25ml = 128渭g/ml 锛4锛夊啀鐢憋紙3 锛夊彇12.5ml绋閲鍒25ml 128渭g/ml * 12.5ml / 25ml = 64渭g/ml 锛5锛 鍐嶇敱锛4锛夊彇2ml绋閲婂埌10ml 64渭g/ml * 2ml / 10ml = 12.8渭g/ml 锛6锛 鐢憋紙5锛夊彇5ml鐨婧舵恫鍔犳按绋閲婂埌25ml 12.8渭g/ml * 5ml / 25ml = ...
