Potassium nitrate is mixed into water which causes an endothermic reaction.  The initial water temp was 19.7 degrees Celsius. The final water temp was 13 degrees Celsius. The mass of the water was 49.742g The mass of the potassium nitrate was 4.522g  What is the heat of the solution in kJ/mole? What is the entropy change for making a solution in J/moleK?

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