AnswersEDG CHEM ES WLABS2P – Q2_9Oxidation-Reduction — Cumulative examQuestion 41
41
QuizMultiple Choice

Oxidation-Reduction — Cumulative exam

Question 41 • EDG CHEM ES W/LABS2(P) – Q2_9

Which of these correctly defines the pH of a solution?

Answer
A
the negative log of the hydronium ion concentration
B
the log of the hydronium ion concentration
C
the negative log of the hydroxide ion concentration
D
the log of the hydroxide ion concentration

Explanation

The pH is defined as the negative base-10 logarithm of the hydronium ion concentration: pH = −log[H₃O⁺]. Therefore, the correct choice is “the negative log of the hydronium ion concentration.”

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