阿Q吧 > 质量为483g Na2SO4?10H2O固体中所含的Na+的物质的量是______mol，所含H2O分子的数目是______个

质量为483g Na2SO4?10H2O固体中所含的Na+的物质的量是______mol，所含H2O分子的数目是______个

2025-03-14 22:23:28
推荐回答（1个）
回答1：

n（Na2SO4?10H2O）=
483g
322g/mol
=1.5mol，
n（Na+）=3mol，
n（H2O）=15mol，
N（H2O）=15mol×6.02×1023/mol=9.03×1024，
故答案为：3；9.03×1024．

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