Problem: Determine the amount of heat (in kJ) required to vaporize 1.50 kg of water at its boiling point. For water, ΔHvap = 40.7 KJ/mol (at 100°C). Express your answer to three significant figures and include the appropriate units.

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Determine the amount of heat (in kJ) required to vaporize 1.50 kg of water at its boiling point. For water, ΔHvap = 40.7 KJ/mol (at 100°C). 

Express your answer to three significant figures and include the appropriate units.