Thermochemistry. Answer, step by step please. (show work)

Question

6) NaHCO3 decomposes into Na2CO3, CO2 , and H2O ∆H = 91.5 kJ

a. Write a balanced chemical equation that includes heat as a reactant or product.

b. What volume of Carbon dioxide is produced when 314 kJ of energy are involved?

Answer 1

a. 2NaHCO₃ + heat ==> Na₂CO₃ + CO₂ + H₂O ... balanced equation

b. The volume of CO2 will depend on the temperature and the pressure. Since no values are given, we'll assume standard temperature and pressure (STP).

314 kJ x 1 mol NaHCO₃ / 91.5 kJ x 1 mol CO₂ / 2 mol NaHCO₃ = 1.72 mols CO₂ produced

Volume CO₂ = 1.72 mols CO₂ x 22.4 L / mol = 38.5 L