[yuheng_wu]

CH₃CH₂OH and CH₃COOH
How do I know which atom is the higher boiling point? The only thing I understand is that these molecules both have hydrogen bonds, but what do I do next to differentiate them?
Is it correct to say that the relative molecule mass of CH₃COOH (=48) is higher than the relative molecuul mass of CH₃CH₂OH (=46) and that therefore the boiling point of CH₃COOH is higher?
Also you can say that CH₃COOH has stronger/more dipole dipole interactions between the COOH group, while CH₃CH₂OH only has the single dipole dipole interaction of H and O (=hydrogen bond). Is this method of reasoning correct?

[chenbeier]

Molar mass of acetic acid is 60 g/mol. Ethanol has 46 g/mol . The acid has stronger hydrogen bond to 2 oxygen possible . The alcohol has only one weak one.

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