32. The pH of a 0.100 M benzoic acid (6.4×10-5) aqueous solution is (A) 2.60 (B) 4.19 (C) 3.26 (D) 2.53

36. For the reaction A + B $\rightleftharpoons$ C + D, $\Delta H^\circ = +40$ kJ and $\Delta S^\circ = +50$ J/K. Therefore, the reaction under standard conditions is (A) spontaneous at temperatures less than 10 K (B) spontaneous at temperatures greater than 800 K (C) spontaneous only at temperatures between 10 K and 800 K (D) spontaneous at all temperatures