What Is the [H₃O⁺] of a 0

question 18

Multiple Choice

What is the [H₃O⁺] of a 0.13 M solution of NH₄Cl in H₂O at 25°C? (K_b for NH₃ = 1.8  10^-5)

• A) 1.2  10^-9 M
• B) 8.5  10^-6 M
• C) 2.3  10^-6 M
• D) 7.2   10^-9 M
• E) 1.5  10^-3 M

---

Definitions:

Final Paragraph

The concluding section of a piece of writing, summarizing the main points and often providing a final perspective on the topic.

Critical Skill

An essential ability or expertise that is necessary for effectively performing tasks, solving problems, or achieving goals.

Specific Action

A particular or distinct deed taken to achieve a goal or address a situation.

Prospecting

The process of searching for potential customers, clients, or buyers in order to develop new business.