A 22. 5 mL solution of H2SO4 solution is titrated with a 0. 105 M NaOH solution. If 43. 2 mL of the titrant is required to reach the equivalence point, determine the molarity of the H2SO4 solution. 0. 0273 M 0. 101 M 0. 403 M 0. 202 M What is the enthalpy of formation of SO3(g)? 2 SO2(g) + O2(g) → 2 SO3(g) ΔH°rxn = -198 kJ ΔH°f, kJ/mol SO2(g) = −297 −396 kJ/mol −495 kJ/mol −792 kJ/mol −575 kJ/mol