Question

Find the ΔHr0 for the reaction:
Na2CO3(s) +2HNO3(aq) → 2NaNO3(s) +CO2(g) +H2O(l)

ΔHr0=+125.7kJ

ΔHr0=-67.2kJ

ΔHr0=-45.3kJ

ΔHr0=-140.0kJ

ΔHr0=+105.8kJ

Answer 1

dHo rxn = (n*dHo products) - (dHo reactants)
Substitute and solve. Post your work if you get stuck.
You will need to look up the dHo for each component. You can find these in tables in your text or online.

Answer 2

WHAT IS THE ANSWER

Answer 3

-67.2 KJ