What Is the [H₃O⁺] in a Buffer That Consists of 0.30

question 41

Multiple Choice

What is the [H₃O⁺] in a buffer that consists of 0.30 M HCOOH and 0.20 M HCOONa? For HCOOH, K_a = 1.7 × 10^-4

• A) 1.1 × 10^-4 M
• B) 2.6 × 10^-4 M
• C) 4.3 × 10^-4 M
• D) 6.7 × 10^-5 M
• E) none of the above

---

Definitions:

Psychoanalytic Theory

A theory developed by Freud emphasizing unconscious motivations and conflicts as the driving forces behind human behavior and mental disorders.

Modeling

The process of learning by observing and imitating the behaviors of others.

Verbal Appellation

The act of naming or labeling something using words.

Channeling

The act of mediating communication between the living and entities in the spiritual realm or channeling energy for various purposes.