AP Chemistryeasymcq1 pt
What is Kw at 25 °C?
A.1.0 × 10⁻¹⁴
B.1.0 × 10⁻⁷
C.14
D.6.02 × 10²³
Explanation
Core Concept
Kw = [H⁺][OH⁻] = 1.0 × 10⁻¹⁴ at 25 °C — the basis for pH + pOH = 14.
Correct Answer
A1.0 × 10⁻¹⁴
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