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tianhua

木虫 (正式写手)

[求助] 0.2mol/L醋酸配制方法

药典中规定:已知醋酸的分子量为60,含量为36%(g/g),现有两种配制0.2mol/L醋酸配制方法
1 取60g至5L水中。
2 取60/0.36g至5L水中。
请问上面两种方法哪种正确,个人认为是2,请各位确定一下?谢谢
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lizhiguang

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【答案】应助回帖

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jiangchunyong(金币+1): 谢谢应助!欢迎常来! 2011-09-20 17:08:13
你要确定醋酸的浓度啊,一般的是36%,还有冰醋酸啊啊,浓度都达到99%.
KK
2楼2011-09-20 17:04:52
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