Solve the Problem $\mathrm { pH }$ Of a Solution Is Given By

question 21

Multiple Choice

Solve the problem.
-The pH of a solution ranges from 0 to 14 . An acid has a pH less than 7 . Pure water is neutral and has a pH of 7 . The $\mathrm { pH }$ of a solution is given by $\mathrm { pH } = - \log x$ where $x$ represents the concentration of the hydrogen ions in the solution in moles per liter. Find the $\mathrm { pH }$ if the hydrogen ion concentration is $2.8 \times 10 ^ { - 3 }$ .

• A) \(3.55\)
• B) \(2.45\)
• C) \(3.45\)
• D) \(2.55\)

---

Definitions:

Gelman

A cognitive psychologist known for her work on the development of categorization and reasoning in children, especially in understanding numbers and biology.

Count Words

The process or activity of determining the number of words in a text or document.

Order-Relevant Principle

involves the idea that the sequence or arrangement of elements or events can significantly affect understanding, memory, or perception.

Abstraction Principle

A concept in computer science and mathematics where specific instances are generalized to a set of properties or behaviors, facilitating generality and reuse.