["황화수소와 암모니아", "H2S와 NH3의 분자량은 황화수소가 34,암모니아가 17입니다. 황화수 pérdida의 끄름점이 낮아更容易挥发，化学不是很好，大家说说一下，加分", "황화수소의 녹화점은 -85.5℃이고 끔름점은 -604℃입니다. 상대 밀도(공기=1)는

2017-10-01View Original

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h2s和NH3的分子量，硫化氢是34，氨是17，是不是氨的沸点比硫化氢低，比硫化氢更容易挥发，谢谢，化学学的不好，请大家说说，加分

Reply #22017-10-02

硫化氢熔点是-85.5℃，沸点是-60.4℃，相对密度（空气=1）1.19。氨的沸点-33.5℃。熔点-77.75℃。物化性质百度一下就知道，要说解释沸点高低的问题可以用相对分子质量解释。挥发可以用分子间作用力解释。

Reply #32017-10-02

那水才18的分子量，比硫化氢难挥发吧。分子量只是其中一点，还有氢键、物质性质

Reply #42017-10-07

硫化氢更容易挥发正确。

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