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

question 58

Multiple Choice

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

---

Definitions:

Indentured Servitude

A labor system where people paid for their passage to the New World by working for an employer for a certain number of years.

Tobacco Industry

Refers to the companies and activities involved in the cultivation, manufacture, and sale of tobacco and tobacco-related products.

Epidemics

Outbreaks of disease that spread quickly and affect a large number of individuals within a population, region, or community at the same time.

Indian Concept

This term is ambiguous without context; it could refer to philosophies, practices, or societal norms originating from or related to India.