题目

You’re in a department store and you see a couple of attractive young women looking at a sweater．You listen to their conversation: “I can’t believe it — Lorenzo Bertolla! They are almost impossible to find．Isn’t it beautiful? And it’s a lot cheaper than the one Sara bought in Rome．” They leave and you go over to see this incredible sweater．It’s nice and the price is right．You’ve never heard of Lorenzo Bertolla, but those girls looked really stylish．They must know．So, you buy it．You never realize that those young women are employees of an advertising ag工业上用电解食盐水制烧碱，其反应为：2NaCl+2H2O 通电 . H2↑+Cl2↑+2NaOH现有食盐23.4t，全部溶于151.2t水中形成溶液，完全电解此溶液制烧碱．计算：（1）可同时制得氯气多少吨？（2）电解后烧碱溶液的质量分数．