Use the following equation:
ΔH0 = ΣHf0p - ΣHf0R
ΔH0 = standard enthalpy change of reaction
ΣHf0p = sum of standard heat of formation for the products
ΣHf0R = sum of standard heat of formation for the reactants
You can find the standard heat of formations from any chemistry textbook, and complete the calculation.
Don't forget to consider the coeffients in the balanced equation during your calculation.