Equimolar 0.050 M solutions of benzoic acid, C H COOH ( )
CHEMISTRY · Single correct · AP · Chemistry · Acids and Bases · Acids and Bases
Problem
Equimolar 0.050 M solutions of benzoic acid, C6H5COOH (Ka=6.3×10−5), and ammonia, NH3 (Kb=1.8×10−5), are mixed at 25 °C. What is the pH of the resulting solution?
(a) 7.0
(b) 6.5
(c) 6.7
(d) 7.3