# Problem: Calculate ΔH°rxn for the reaction 2 Ni(s) + 2 S(s) + 3 O2(g) → 2 NiSO3(s) from the following information: (1) NiSO3(s) → NiO(s) + SO2(g)       ΔH°rxn = 156 kJ   (2) S(s) + O2(g) → SO2(g)                 ΔH°rxn = -297 kJ    3) Ni(s) + 1/2 O2(g) → NiO(s)           ΔH°rxn = -241 kJ

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###### Problem Details

Calculate ΔH°rxn for the reaction

2 Ni(s) + 2 S(s) + 3 O2(g) → 2 NiSO3(s)

from the following information:

(1) NiSO3(s) → NiO(s) + SO2(g)       ΔH°rxn = 156 kJ

(2) S(s) + O2(g) → SO2(g)                 ΔH°rxn = -297 kJ

3) Ni(s) + 1/2 O2(g) → NiO(s)           ΔH°rxn = -241 kJ

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Hess's Law concept. You can view video lessons to learn Hess's Law. Or if you need more Hess's Law practice, you can also practice Hess's Law practice problems.

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What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Rupnik's class at LSU.