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阿伏伽德罗常数

> N A表示阿伏加德罗常数的值．下列说法正确的是（　　） A．标准状况下，22.4L任意比的氢气与氧气的混合气体中的分子总数均为2NA B．标准状况下，22.4L水中含有NA个O-H键 C．足量铜与1L18mol•L-1浓硫酸反应可以生成SO2分子总数为9NA D．100mL0.1mol•L-1HNO3溶液中含有0.01NA个NO3-

问题：

发布时间：2024-09-09

N _A表示阿伏加德罗常数的值．下列说法正确的是（　　）

A．标准状况下，22.4L任意比的氢气与氧气的混合气体中的分子总数均为2N_A

B．标准状况下，22.4L水中含有N_A个O-H键

C．足量铜与1L18mol•L^-1浓硫酸反应可以生成SO₂分子总数为9N_A

D．100mL0.1mol•L^-1HNO₃溶液中含有0.01N_A个NO₃^-

参考答案：

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