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yalefield金虫 (文坛精英)
老汉一枚
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[求助]
请教：acid finally the choice
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In the organic laboratory, crystallization is usually the most rapid and convenient method for purifying the products of a reaction. Initially you will be told which solvent to use to crystallize a given substance and how much of it to use; Later on you will judge how much solvent is needed, acid finally the choice of both the solvent and its volume will be left to you. It takes both experience and knowledge to pick the correct solvent for a given purification. 请问，acid finally the choice 中，acid是什么意思？ |
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古可ぷ
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2楼2011-09-17 09:39:13
古可ぷ
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3楼2011-09-17 10:09:20
yalefield
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（1）所以，俺怀疑是打错了； （2）从内容来说，与“酸（acid）”也没什么关系。 （3）俺觉得是不是可以这样： Initiall,y you will be told which solvent to use to crystallize a given substance and how much of it to use. Later on, you will judge how much solvent is needed. Finally, the choice of both the solvent and its volume will be left to you. |
4楼2011-09-17 10:58:14
