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

question 220

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 the $\left[ \mathrm { H } _ { 3 } \mathrm { O } ^ { + } \right]$ if the $\mathrm { pH } = 2.3$ .

• A) \(5.0 \times 10 ^ { - 3 }\)
• B) \(3.6 \times 10 ^ { - 1 }\)
• C) \(2.7 \times 10 ^ { 1 }\)
• D) \(2.0 \times 10 ^ { 2 }\)

---

Definitions:

Autonomous

The state of being self-governing or independent, capable of making decisions without external control.

Dualistic

Pertaining to a theory or concept that divides a subject into two opposed or contrasted aspects or entities.

Reflect on Self-Thought

The process of introspection, examining one's own thoughts, beliefs, and cognitive processes.

Post-Formal Cognitive

A stage of cognitive development that goes beyond Piaget's formal operational stage, characterized by the ability to deal with complex situations and understand that knowledge can be relative.