Hydrogen sulfide and ammonia
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The molecular weights of H2S and NH3 are 34 for hydrogen sulfide and 17 for ammonia. Does this mean that ammonia has a lower boiling point than hydrogen sulfide, and is therefore more volatile? Thank you; I’m not very good at chemistry, so please help me out. Points will be given for helpful answers
The melting point of hydrogen sulfide is -85.5°C, the boiling point is -60.4°C, and the relative density (air=1) is 1.19. The boiling point of ammonia is -33.5°C. Melting point -77.75°C. The physical and chemical properties can be found by searching on Baidu; as for explaining the difference in boiling points, it can be explained using the relative molecular mass. Vaporization can be explained by intermolecular forces.
That water has a molecular weight of only 18, so it’s less volatile than hydrogen sulfide. Molecular weight is just one factor; there are also hydrogen bonds and the properties of the substance
Hydrogen sulfide is more volatile, correct.