某學(xué)習(xí)小組測定某工業(yè)廢水(含有H
2SO
4、HNO
3,不含固體雜質(zhì))中H
2SO
4的含量。取100g廢水于燒杯中,加入100gBaCl
2溶液,恰好完全反應(yīng),經(jīng)過濾得到176.7g溶液。(可溶性雜質(zhì)不參加反應(yīng),過濾后濾液的損失忽略不計(jì))
(1)充分反應(yīng)后生成沉淀的質(zhì)量為
23.3
23.3
g;
(2)該工業(yè)廢水中硫酸的質(zhì)量分?jǐn)?shù)為多少?(寫出計(jì)算過程,計(jì)算結(jié)果精確到0.1%)