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已知一个CO分子质量为nkg，一个CO2分子的质量为mkg，若以氧原子质量的116作为标准，则CO的相对分子质量为_____已知一个CO分子质量为nkg，一个CO 2 分子的质量为mkg，若以氧原子质量的 1 16 作为标准，则CO的相对分子质量为______．

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已知一个CO分子质量为nkg，一个CO 2 分子的质量为mkg，一个CO分子比一个CO 2 分子少一个氧原子，则1个氧原......

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