Question

Find the ΔH for the reaction below, given the following reactions and subsequent ΔH values: 2HCl(g)...

Find the ΔH for the reaction below, given the following reactions and subsequent ΔH values:

2HCl(g) + 2NaNO 2 (s) → HNO 2 (l) + 2NaCl(s)

1) 2NaCl(s) + H 2 O(l) → 2HCl(g) + Na 2 O(s) ΔH = 507 kJ

2) NO(g) + NO 2 (g) + Na 2 O(s) → 2NaNO 2 (s) ΔH = -427 kJ

3) NO(g) + NO 2 (g) → N 2 O(g) + O 2 (g) ΔH = -43 kJ

4) HNO 2 (l) → N 2 O(g) + O 2 (g) + H 2 O(l) ΔH = 34 kJ

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