作者g34658 (关公)
看板NCHU-ENVE102
标题[资讯] 环化第2次作业
时间Wed Oct 6 00:41:32 2010
因为它是2007板 有些人电脑开不起来
所以我佛心来的
需要的就自己拿吧!!
Homework Assignment #02
1.Calculate the formula weight and equivalent weight of (a) BaSO4, (b) Na2CO3, (c) H2SO4, and (d) Mg(OH)2.
2. (a) Calculate the weight of KMnO4 contained in 2 liters of a 0.15 M solution.
(b) Calculate the weight of BaSO4 contained in 2 liters of a 0.15 N solution.
3. A water sample contains 44 mg/L of calcium ion and 19 mg/L of magnesium ion. What is the hardness expressed as mg/L of CaCO3? Note that hardness is the sum of the multivalent cations.
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