Measurements show that the pH of a particular lake is 4.0. What is the hydrogen ion concentration of the lake?

Name: Measurements show that the pH of a particular lake is 4.0. What is the hydrogen ion concentration of the lake?
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Question

Quizplus · Accepted Answer

The pH of a solution is defined as the negative logarithm (base 10) of the hydrogen ion concentration. Therefore, pH = -log[H+]. In this case, the pH of the lake is 4.0. So, -log[H+] = 4.0. Solving for [H+], we get [H+] = 10^-4 M. Hence, Option B is the correct answer.

Measurements Show That the PH of a Particular Lake Is