在硫酸铝溶液中含有9.03×10的23次方个Al离子,则该溶液中SO4离子的物质的量是
人气：239 ℃ 时间：2019-08-20 14:30:19
解答
硫酸铝的化学式Al2(SO4)3
所以Al2(SO4)3中Al3+与SO4^2-物质的量之比 = 2:3
现在含有9.03×10^23个Al3+即1.5mol Al3+
所以该溶液中SO4^2-物质的量 = 1.5/2 * 3 = 2.25mol
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