In a calorimetry experiment 0497 g of potassium hydroxide, Ask an Expert

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In a calorimetry experiment, 0.497 g of potassium hydroxide are dissolved in 25.o ml of water (density = 1.00 gml, specific heat = 4.184 j g-1 °c-1) in an insulated container. the temperature of the water rises from 21.37 °c to 26.25 °c. what is the change ho for the following reaction? (neglect the heat capacity of the container)

KOH(s)=K+(aq)+OH-(aq)

-57.6 kJ/mol
-510 kJ/mol
-10.1 kJ/mol
57.6 kJ/mol
510 kJ/mol

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