A buffer is constructed by dissolving 2.05 grams of sodiumbenzoate (144.11 g/mol) and 2.47 grams of benzoic acid (122.12g/mol Ka = 6.50 x 10^-5) in 150.0 mL of distilledwater.Ă‚Â Ă‚Â The solution is titrated with 0.500 M NaOH.Calculate the pH of the solution:
a) at the equivalence pointĂ‚Â Ă‚Â
b) 20.00 mL NaOH before the equivalence pointĂ‚Â Ă‚Â
c) 20.00 mL NaOH after the equivalence point
