Round Your Answer to the Nearest Tenth, When Appropriate $\mathrm { pH } = - \log \left[ \mathrm { H } _ { 3 } \mathrm { O } ^ { + } \right]$

question 441

Multiple Choice

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 $\mathrm { pH } = 1.4$ .

• A) \(2.5 \times 10 ^ { - 2 }\)
• B) \(2.5 \times 10 ^ { - 1 }\)
• C) \(4.0 \times 10 ^ { - 1 }\)
• D) \(4.0 \times 10 ^ { - 2 }\)

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