Question Detail

CHM 101 CHM 101 Past Questions Objective Question

Question

Calculate the pH of a 0.0005 M solution of Ba(OH)₂, a strong base.
Options
A 10.70
B 11.00
Correct Answer
C 11.30
D 12.00
Correct Answer

Option B is the correct answer.

Detailed Explanation

[OH⁻] = 2 × 0.0005 = 0.0010 M. pOH = -log(0.0010) = 3.00. pH = 14.00 - 3.00 = 11.00.

Hint

Ba(OH)₂ provides 2 OH⁻ ions per formula unit.

Question Info