阿Q吧 > 氢氧化钠的摩尔质量是多少？怎么求

氢氧化钠的摩尔质量是多少？怎么求

2025-03-15 00:13:08
推荐回答（2个）
回答1：

氢氧化钠的相对分子质量是多少，它的摩尔质量就是多少克每摩尔，任何分子都是这样。
钠的原子量为23，氢为1，氧为16，所以氢氧化钠的摩尔质量为(23+1+16)g/mol=40g/mol.

回答2：

M（NaOH）=23+16+1=40g/mol
就是把里面所有原子的相对原子质量相加

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