AP Chemistryeasymcq1 pt
A solution's pOH is 3.0. What is [OH⁻]?
A.1.0 × 10⁻³ M
B.1.0 × 10⁻¹¹ M
C.3.0 M
D.1.0 × 10⁻⁷ M
Explanation
Core Concept
[OH⁻] = 10^(−pOH) = 10⁻³ M. The pOH scale mirrors pH for hydroxide.
Correct Answer
A1.0 × 10⁻³ M
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 →