Equal volumes of 0.10 M hypochlorous acid, HOCl ( )
CHEMISTRY · Single correct · A Level · Chemistry · Acids and bases · Acids and bases
Problem
Equal volumes of 0.10 M hypochlorous acid, HOCl (Ka=3.5×10−8), and 0.10 M ethylamine, C2H5NH2 (Kb=5.4×10−4), are combined in a beaker at 25 °C. What is the pH of the final mixture?
(a) 7.0
(b) 10.1
(c) 9.1
(d) 7.5