几道英文版的化学题,1.A solution is labeled "0.450M magnesium nitrate." Calculate the concentration of each ion present in solution.2.Calculate the number of moles of KOH in 150.0 mL of a 0.500M KOH solution.3.Cauculate the new concentration when 50.0mL of water is added to 725.0mL of 1.25M NaCl.
问题描述：
几道英文版的化学题,
1.A solution is labeled "0.450M magnesium nitrate." Calculate the concentration of each ion present in solution.
2.Calculate the number of moles of KOH in 150.0 mL of a 0.500M KOH solution.
3.Cauculate the new concentration when 50.0mL of water is added to 725.0mL of 1.25M NaCl.
答
先把题目大概翻译一下：
1。含有0.45mol的硝酸镁溶液中各种离子的浓度
2。计算150ml0.5molKOH溶液中含有多少摩尔KOH
3。当往50ml水中加入725ml1.25mol的NaCl后溶质的浓度变为多少
答案：
同楼上
答
1 NO3根离子0.9mol/L Mg离子0.45mol/L
2 0.075mol
3 1.17mol/L
答
- - 第一题 硝酸根0.9mol每升 mg离子0.45mol每升
第二题0.075mol
第三题怎么有小数点 .1.17
答
如果有五十分，我会帮你翻译好再做出来的……