If for is 4, what is the pH of 0.1 M in solution at…

CHEMISTRY · Single correct · A Level · Chemistry · Acids and bases · Acids and bases

Problem

\text{p}K_b

for

\text{C}_6\text{H}_5\text{O}^-

is 4, what is the pH of 0.1 M

\text{C}_6\text{H}_5\text{O}^-

in solution at

25^\circ\text{C}

? (1) 13.0 (2) 12.5 (3) 11.5 (4) 10.5