molar mass of a2 160 g/mol density of a2(l) 3.119 g/ml volume of a2(l) 0.323 ml density of solution 1.007 g/ml total volume of solution 10 ml specific heat capacity of solution 3.47 j/g·ºc initial t 22 ºc final t 11 ºc calorimeter heat capacity 3.39 j/ºc