This problem states, "when a 9.55 g sample of solid NaOHdissolves in 100.0 g of water in a coffeecup calorimeter, the temprises from 23.6 to 47.4. Calculate change in H. for the solution process:
NaOH-----> Na + OH"The solution on cramster uses the q=mc(change of T) equation.For the mass, cramster added both the mass of NaOH and watertogether.Why are the masses of NaOH and H20 added together for the heat equation?