How many grams of CaO must be added to 50.0 mL of water to make the temperature increase from 25.0 ¡ÆC to 48.81 ¡ÆC? The reaction is

CaO(s) + H2O(l) ¡ê Ca(OH)2(aq) -- ¥ÄH = -83.7 kJ

Assume the heat capacity of the solution is the same as pure water (4.184 J/g*¡ÆC), the density of the solution is 1.00 g/mL and there is no loss of heat to the