把5.1g镁铝合金的粉末放入过量的盐酸中,得到5.6L氢气(标准状况下).试计算计算(1)该合金中铝的质量分数;(2)该合金中铝和镁的物质的量之比Mg+2Hcl=Mgcl2+H2↑2Al+6Hcl=2Alcl3+3H2↑设Mg为x Al为y 第一
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![把5.1g镁铝合金的粉末放入过量的盐酸中,得到5.6L氢气(标准状况下).试计算计算(1)该合金中铝的质量分数;(2)该合金中铝和镁的物质的量之比Mg+2Hcl=Mgcl2+H2↑2Al+6Hcl=2Alcl3+3H2↑设Mg为x Al为y 第一](/uploads/image/z/3392479-55-9.jpg?t=%E6%8A%8A5.1g%E9%95%81%E9%93%9D%E5%90%88%E9%87%91%E7%9A%84%E7%B2%89%E6%9C%AB%E6%94%BE%E5%85%A5%E8%BF%87%E9%87%8F%E7%9A%84%E7%9B%90%E9%85%B8%E4%B8%AD%2C%E5%BE%97%E5%88%B05.6L%E6%B0%A2%E6%B0%94%EF%BC%88%E6%A0%87%E5%87%86%E7%8A%B6%E5%86%B5%E4%B8%8B%EF%BC%89.%E8%AF%95%E8%AE%A1%E7%AE%97%E8%AE%A1%E7%AE%97%281%29%E8%AF%A5%E5%90%88%E9%87%91%E4%B8%AD%E9%93%9D%E7%9A%84%E8%B4%A8%E9%87%8F%E5%88%86%E6%95%B0%3B%282%29%E8%AF%A5%E5%90%88%E9%87%91%E4%B8%AD%E9%93%9D%E5%92%8C%E9%95%81%E7%9A%84%E7%89%A9%E8%B4%A8%E7%9A%84%E9%87%8F%E4%B9%8B%E6%AF%94Mg%2B2Hcl%3DMgcl2%2BH2%E2%86%912Al%2B6Hcl%3D2Alcl3%2B3H2%E2%86%91%E8%AE%BEMg%E4%B8%BAx+Al%E4%B8%BAy+%E7%AC%AC%E4%B8%80)
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