More Chem 2 help...?

Question

When 1.50g Ba (s) is added to 100.00 g of water in a container open to the atmosphere, the reaction shown below occurs, and the temp of the resulting solution rises from 22 degrees C to 33.1 degrees C. If the specific heat of the solution is 4.18 J/g, calculate (triangle)H for the reaction as written.

Ba(s) +2 (water)(l) gives Ba(OH)2 (aq) +H2 (g)

any help?

Answer 1

1. 101.5 x 4.18 x (-11.1)

2. Work out the moles of Ba.

3. Divide 1 by 2.