The vapor pressure of a solution is related to the intermolecular forces: a stronger IMF leads to lower vapor pressure. This means the solution with the highest vapor pressure has the weakest IMF, and vice-versa.
Recall that a solution with higher solute concentration will have a stronger IMF, resulting in lower vapor pressure. Therefore, we need to calculate the osmolarity of each solution, which is given by:
Assuming that each solution has the same concentration:
Which one solution would have the highest vapor pressure at a given temperature?
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