Consider the following reaction between oxides of nitrogen: NO2(g)+N2O(g)→3NO(g)                                                   a) Using the value of  Ka , calculate  ΔG∘  for the dissociation of nitrous acid in aqueous solution.                                        b) What is the value of ΔG at equilibrium?                                                                                                                                c)What is the value of ΔG when[H+] = 6.0×10−2M, [NO2−] = 6.2×10−4M and [HNO2] = 0.20 M ?

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