Question #20eee

1 Answer
David Drayer
Oct 13, 2017

Na Cl dissolves into water as two ions each of which elevates the boiling point.

Explanation:

The calculation of the boiling point elevation is based on the number of particles. The boiling point elevation would be twice that of a molecular substance that didn't ionize. So the molecule mass would be divided in half.

Because salt # NaCl# ionizes into two particles the boiling point elevation will be doubled. This results in dividing the mass of salt dissolved by a factor of 2. So the calculated molecular mass(actually the formula mass) is half of the actual value.

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