同质量的氨气和硫化氢气体的体积之比是多少?
同质量的氨气和硫化氢气体的体积之比是多少?
化学人气:145 ℃时间:2019-10-31 16:33:21
优质解答
NH3的相对分子量是17,而H2S是34,就是说同样摩尔量的NH3和H2S质量比为1:2,所以,质量机同的二者,摩尔量之比为2:1,气体体体积V=22.4*N,N为摩尔量,所以,同质量的氨气和硫化氢气体的体积之比为2:1
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