把10g铁和铜的混合物放到100g的硫酸溶液的烧杯中,恰好完全反应,反应后烧杯中的物质的总质量比反应前(铁、铜、硫酸溶液)减少了0.2g,求:(1)原混合物中铁的质量分数;(2)硫酸溶液的
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![把10g铁和铜的混合物放到100g的硫酸溶液的烧杯中,恰好完全反应,反应后烧杯中的物质的总质量比反应前(铁、铜、硫酸溶液)减少了0.2g,求:(1)原混合物中铁的质量分数;(2)硫酸溶液的](/uploads/image/z/11191693-13-3.jpg?t=%E6%8A%8A10g%E9%93%81%E5%92%8C%E9%93%9C%E7%9A%84%E6%B7%B7%E5%90%88%E7%89%A9%E6%94%BE%E5%88%B0100g%E7%9A%84%E7%A1%AB%E9%85%B8%E6%BA%B6%E6%B6%B2%E7%9A%84%E7%83%A7%E6%9D%AF%E4%B8%AD%2C%E6%81%B0%E5%A5%BD%E5%AE%8C%E5%85%A8%E5%8F%8D%E5%BA%94%2C%E5%8F%8D%E5%BA%94%E5%90%8E%E7%83%A7%E6%9D%AF%E4%B8%AD%E7%9A%84%E7%89%A9%E8%B4%A8%E7%9A%84%E6%80%BB%E8%B4%A8%E9%87%8F%E6%AF%94%E5%8F%8D%E5%BA%94%E5%89%8D%EF%BC%88%E9%93%81%E3%80%81%E9%93%9C%E3%80%81%E7%A1%AB%E9%85%B8%E6%BA%B6%E6%B6%B2%EF%BC%89%E5%87%8F%E5%B0%91%E4%BA%860.2g%2C%E6%B1%82%EF%BC%9A%EF%BC%881%EF%BC%89%E5%8E%9F%E6%B7%B7%E5%90%88%E7%89%A9%E4%B8%AD%E9%93%81%E7%9A%84%E8%B4%A8%E9%87%8F%E5%88%86%E6%95%B0%EF%BC%9B%EF%BC%882%EF%BC%89%E7%A1%AB%E9%85%B8%E6%BA%B6%E6%B6%B2%E7%9A%84)
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