AP Chemistryeasymcq1 pt
What is the pKa of an acid with Ka = 1.0 × 10⁻⁴?
A.4.0
B.10.0
C.1.0
D.0.0001
Explanation
Core Concept
pKa = −log(Ka) = −log(10⁻⁴) = 4.0. The p scale converts powers of ten to small numbers.
Correct Answer
A4.0
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