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A student dissolved 5.05 g of KNO3 in 100.302 g of water. The temperature changed from...

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Chemistry

A student dissolved 5.05 g of KNO3 in 100.302 g ofwater. The temperature changed from 25 to 21.7°C. Calculate theenthalpy of solution the student experimentally found in kJ/mole ofKNO3. Is this an endothermic or an exothermic
reaction?

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