将29.1g由NaCl和BaCl2组成的固体混合物溶解于94.2mL水中(=1g/cm3),向所得溶液中滴加质量分数为14.2%的Na2SO4溶液,至恰好完全反应。下图是所加Na2SO4溶液质量与生成沉淀质量的关系图,计算::w/p;X4p(d6s*a*V*v6Q)X;n/t.O9p'H-R
(1)生成沉淀的质量是多少?:w/p;X4p(d6s*a*V*v6Q)X;n/t.O9p'H-R
(2)所得溶液中溶质的质量分数为多少?:w/p;X4p(d6s*a*V*v6Q)X;n/t.O9p'H-R
:w/p;X4p(d6s*a*V*v6Q)X;n/t.O9p'H-R
算式:提示7t'O;C9_7r+]3p:w/p;X4p(d6s*a*V*v6Q)X;n/t.O9p'H-R
答:生成沉淀23.3g,所得NaCl溶液的质量分数为9M'u/T8h3a。:w/p;X4p(d6s*a*V*v6Q)X;n/t.O9p'H-R