就等于是电解水,阳极:4OH- -4e- = O2+2H2O阴极: 4H+ +4e- =2H22H2O=电解=2H2+O236...................................136a...............................a电解消耗的水为36a 克w克Na2SO4.10H2O中Na2SO4质量为142w/322=41w/161这样原饱和溶液中溶质41w/161,溶液质量w+36a质量分数=41w/161 / w+36a