An Ammonia Buffer Contains NH₃:NH₄⁺ in a Ratio of 0

question 42

Multiple Choice

An ammonia buffer contains NH₃:NH₄⁺ in a ratio of 0.4 moles:0.6 moles (pK = 9.75) . What will be the pH if you add 0.01 moles of HCl to this buffer?

• A) 8.98
• B) 9.04
• C) 9.25
• D) 9.46
• E) 9.52

---

Definitions:

Empirical Evidence

Information acquired by observation or experimentation that serves as the basis for knowledge and the formation of theories.

Philosophy

The study of fundamental questions about existence, knowledge, values, reason, mind, and language.

Operant Conditioning

An approach to learning where behavioral potency is changed through the implementation of incentives or consequences.

Classical Conditioning

A learning process in which two stimuli are repeatedly paired; a response that is initially elicited by the second stimulus is eventually elicited by the first stimulus alone.