A 8.67 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.

What is the total mass inside the calorimeter in grams?
Was the dissolution process endothermic or exothermic?