How many grams of CaO must be added to 50.0 mL of water to make the temperature increase from 25.0 °C to 46.76 °C? The reaction is CaO(s) + H2O(l) ? Ca(OH)2(aq) -- ?H = -83.7 kJ Assume the heat capacity of the solution is the same as pure water (4.184 J/g*°C), the density of the solution is 1.00 g/mL and there is no loss of heat to the surroundings.