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The forces, either attractive or repulsive, that exist between molecules due to electric charges or varying electron cloud distribution. This tag could also include intra-molecular attractions (within one molecule itself) often found in a protein amino acid residues.

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Why does alkylamines have a higher boiling point than ammonia?

Here are the boiling points of ammonia and some amines: $$ \begin{array}{|c|c|} \hline \textrm{Substance} & \textrm{Boiling Point} \\ \hline \textrm{Ammonia} & \pu{-33.34^\circ C} \\ \textrm{Methylami …
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