Calculate the ΔH°rxn for the following reaction.

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Calculate the ΔH°rxn for the following reaction.
ΔH°f [AsH3(g)] = 66.4 kJ/mol
ΔH°f [H3AsO4(aq)] = -904.6 kJ/mol
ΔH°f [H2O(l)] = -285.8 kJ/mol
H3AsO4(aq) + 4H2(g) → AsH3(g) + 4H2O(l)

Mark Taylor

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