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Web Chem 12 Hess’s Law Worksheet.

Calculate ∆h for the reaction 4 nh3 (g) + 5 o2 (g) → 4 no (g) + 6 h2o (g), from the following data. Calculate the δh for the reaction: C2h5oh(l) + 2 o2(g) → 2 co2(g) + 2 h2o(l) c(s) + o2(g) → co2(g) h2(g) + 1⁄2 o2(g) → h2o(l) 3. Web chemistry 120 hess’s law worksheet.

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