71g硫酸钠中纳离子和硫酸根离子的物质的量分别是多少
人气：309 ℃ 时间：2019-08-19 01:18:45
解答
硫酸钠,化学式：Na₂SO₄,摩尔质量：142g/mol
所以,71克硫酸钠的物质的量为0.5mol,1个硫酸钠中,有两个钠离子,一个硫酸根离子,所以0.5mol硫酸钠中,有1mol钠离子,0.5mol硫酸根离子.
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