AP Chemistrymediummcq1 pt
What is the pH of 0.050 M KOH at 25 °C?
A.12.70
B.1.30
C.13.00
D.7.00
Explanation
Core Concept
[OH⁻] = 0.050 M, so pOH = −log(0.050) = 1.30 and pH = 14.00 − 1.30 = 12.70.
Correct Answer
A12.70
More Unit 8: Acids and Bases practice questions
- mediumWhich mixture produces a buffer with pH closest to 9.0?
- mediumFor a weak acid, which approximation allows skipping the quadratic?
- mediumWhat is the pH of a solution after 0.0050 mol of HCl is added to 1.0 L of pure water?
- mediumIn the reaction HSO₄⁻ + H₂O ⇌ SO₄²⁻ + H₃O⁺, which species acts as a base?
- easyWhich of the following is the strongest base?
Practice more AP Chemistry questions with full explanations
Practice Unit 8: Acids and Bases Questions →