Would you expect the boiling point of a solution to change if you added a non-volatile solute such as potassium chloride? How? Would an insoluble substance such as sand affect the boiling point?

EXPLAIN PLEASEE :]
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delta T = Kb*molality

KCl changes the molality; therefore, it will change the boiling point.
Sand does not dissolve in water, molality does not change, delta T will not change.