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45mLCO、CH4、C2H2的混合气体与100mLO2完全燃烧并冷却到室温后,体积变为80mL,用KOH吸收CO2之后,体积缩减为15mL。求原混合气中CO、CH4、C2H2的体积分数是()。


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更多 “45mLCO、CH4、C2H2的混合气体与100mLO2完全燃烧并冷却到室温后,体积变为80mL,用KOH吸收CO2之后,体积缩减为15mL。求原混合气中CO、CH4、C2H2的体积分数是()。” 相关考题
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