1.How much heat is evolved when 27.0 g of glucose is burned according to this equation?

4.From the following data, 

H2 (g) + Cl2 (g) → 2HCl(g) ΔHv = -185 kJ 

2H2 (g) + O2 (g) → 2H2O(g) ΔH = -483.7 kJ 

calculate ΔH for the following reaction. 

4HCl(g) + O2 (g) → 2Cl2 (g) + 2H2O(g)

-299kJ

114kJ

299kJ

-114kJ

5.Given the following information, 

SO3 (g) + H2O(l) → H2SO4 (l) ΔH = -133 kJ 

Pb(s) + PbO2 (s) + 2H2SO4(l) → 2PbSO4(s) + 2H2O(l) ΔH = -509 kJ 

calculate the ΔH for the reaction below. 

Pb(s) + PbO2 (s) + 2SO3 (g) → 2PbSO4 (s)

-775kJ

376kJ

775kJ

-376kJ