试题与答案

向8 g某+2价金属的氧化物固体中加入稀硫酸,使其恰好完全溶解,已知所消耗的硫酸

题型:计算题

题目:

向8 g某+2价金属的氧化物固体中加入稀硫酸,使其恰好完全溶解,已知所消耗的硫酸体积为100 mL,在所得溶液中插入铂电极进行电解,一定时间后,在一个电极上收集到标准状况下224 mL氧气,在另一个电极上得到1.28 g金属。

(1)根据计算确定金属的名称。

(2)计算通电后所得硫酸溶液的物质的量浓度(溶液体积按100 mL计算)。

答案:

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参考答案:B

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