A 8.17 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee cup calorimeter. Before placing the sample in the water, the temperature of the salt and water is 23.72 C. After the salt has completely dissolved, the temperature of the solution is 28.54 C.

If 3.19 10 J of heat was gained by the solution, what is the total heat for the dissolution reaction of the 8.17 g of salt?