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在中学化学计算中,常遇到气态物质的平均分子量的求法,为此,对中学化学计算题一些常见的平均分子量计算作如下介绍:一、已知混和气体在标准状况下的密度,求平均分子量。1摩尔的任何气体在标准状况下的体积都是22.4升,混合气体在标准状况下,22.4升的质量在数值上就等于混合气体的平均分子量。
In the middle school chemistry calculations, the average molecular weight of gaseous substances is often encountered. For this reason, some common average molecular weight calculations for middle school chemistry calculations are described as follows: 1. The density of known mixed gases under standard conditions is averaged. Molecular weight. The volume of 1 mole of any gas under standard conditions is 22.4 liters. Under standard conditions, the mass of 22.4 liters of the mixed gas is equal to the average molecular weight of the mixed gas.