Solve the Problem $$\mathrm { pH } = - \log \left[ \mathrm { H } _ { 3 } \mathrm { O } ^ { + } \right]$$

question 121

Multiple Choice

Solve the problem. Round your answer to the nearest tenth, when appropriate. Use the formula $$\mathrm { pH } = - \log \left[ \mathrm { H } _ { 3 } \mathrm { O } ^ { + } \right]$$ as needed.
-Find $\left[ \mathrm { H } _ { 3 } \mathrm { O } ^ { + } \right]$ if the $\mathrm { pH } = 5$ .

• A) \(1.0 \times 10 ^ { 5 }\)
• B) \(2.0 \times 10 ^ { 5 }\)
• C) \(3.0 \times 10 ^ { - 5 }\)
• D) \(1.0 \times 10 ^ { - 5 }\)

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