Use the thermodynamic data in Appendix 2A to calculate the acidity constant of HF(aq). 2A THERMODYNAMIC DATA

Use the thermodynamic data in Appendix 2A to calculate the acidity constant of HF(aq).

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2A THERMODYNAMIC DATA AT 25 °C Inorganic Substances Substance Aluminum Al(s) Al³+ (aq) AI(OH)3(s) Al₂O3(s) AICI, (s) AlBr,(s) Antimony Sb(s) SbH3(g) SbCl3(g) SbCls(g) Arsenic As(s), gray AsO4³ (aq) A$2S3(S) Barium Ba(s) Ba²+ (aq) BaO(s) BaCO3(s) BaCO3(aq) Molar mass, M/(g-mol-¹) 26.98 26.98 78.00 101.96 133.33 266.68 121.76 124.78 228.11 299.01 74.92 138.92 246.05 137.33 137.33 153.33 197.34 197.34 Enthalpy of formation, AH/(kJ.mol-¹) 0 -524.7 -1276 -1675.7 -704.2 -527.2 0 +145.11 -313.8 -394.34 0 -888.14 - 169.0 0 -537.64 -553.5 -1216.3 -1214.78 Gibbs free energy of formation, AG/(kJ-mol-¹) 0 -481.2 -1582.35 -628.8 0 +147,75 -301.2 -334.29 0 -648.41 -168.6 0 -560.77 -525.1 -1137.6 -1088.59 Molar heat capacity, Cr.m/(J-K-mol¹) 24.35 79.04 91.84 100.6 25.23 41.05 76.69 121.13 24.64 116.3 28.07 47.78 85.35 Molar entropy," Sm/(J.K¹-mol-¹) 28.33 -321.7 50.92 110.67 180.2 45.69 232.78 337.80 401.94 35.1 -162.8 163.6 62.8 +9.6 70.42 112.1 -47.3