2. Calculate the solubility of silver acetate, AgCH3COO (s), in solutions buffered at pH = 2.00, 4.00, 6.00, 8.00, and 10.00 at 25◦ C. Take the value of Ksp for AgCH3 COO (s) to be 1.9 × 10−3 M2 at this temperature. Ka = 1.8 * 10^ -5

A chemist wishes to prepare 121.00 mL of acetic acid/sodium acetate buffer solution with a pH of 4.55  and a total concentration of the components equal to 0.35 M. The pKa for acetic acid is 4.75. (a) What mass of acetic acid (molar mass 60.05 g/mol) is required? (b) What mass of sodium acetate (molar mass 82.03 g/mol) is required?

Potassium hydrogen phthalate (KHP) concentrations can be determined through titrating samples of KHP (a monoprotic acid) with bases such as NaOH in the presence of an indicator such as phenolphthalein. The indicator is colorless in an acidic solution and turns pink in an alkaline solution. Thus, we can establish an equilibrium for the phenolphthalein with the following reaction. HIn + H,0 = In + H;0* If the Hin species is "acid color" or colorless for the phenolphthalein, and the In species is "base color" or pink for this particular indicator, what color will appear in a flask in which a 0.2993 gram sample of KHP is completely neutralized with an excess of NaOH? A The flask will be colorless. B The flask will be pink. The flask will be white from KCI precipitation. There is insufficient information to solve this problem.

Calculate the molar solubility of manganese hydroxide in a solution buffered at pH = 11.50.Mn(OH)2 (Ksp = 1.9×10–13)