When a 13.0g sample of NaOH(s) dissolves in 400.0 mL water in a coffee cup calorimeter, the temperature of the water changes from 22.6C to 30.7C. Assuming that the specific heat capiacity of the solution is the same as for water, calculate:_______.
(a) the heat transfer from system to surroundings
(b) change in H for the reaction
NaOH(s) -----> Na+(aq) + OH-(aq)
