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1. Use the data in Table 8.3 on page 289 in the textbook to calculate an approximate ΔH degrees in kilojoules for the industrial synthesis of ethyl alcohol from ethylene: C2H4(g) + H202 (g) = C2H5OH(G)

C-H 410 H-0 460 C-O 350 C=O 732 O-H 460

2. How much heat is absorbed/released when 20.00 g of NH3(g) reacts in the presence of excess O2(g) to produce NO(g) and H2O(l) according to the following chemical equation?

4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(l)

ΔH° = +1168 kJ

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