Solve the Problem $\mathrm { pH }$ , of a Substance Is Defined By

question 240

Multiple Choice

Solve the problem.
-The hydrogen potential, $\mathrm { pH }$ , of a substance is defined by $\mathrm { pH } = - \log \left[ \mathrm { H } ^ { + } \right]$ , where $\left[ \mathrm { H } ^ { + } \right]$ is measured in moles per liter. Find the pH of a sample of lake water whose $\left[ \mathrm { H } ^ { + } \right]$ is $3.05 \times 10 ^ { - 9 }$ moles per liter. (Round to the nearest tenth.)

• A) \(10.1\)
• B) \(6.4\)
• C) \(7.3\)
• D) \(8.5\)

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