What Is the PH of a Buffer Solution That Is

question 124

Multiple Choice

What is the pH of a buffer solution that is 0.211 mol L^-1 in lactic acid and 0.111 mol L^-1 in sodium lactate? The K_a of lactic acid is 1.4 × 10^-4.

• A)14.28
• B)10.43
• C)5.48
• D)3.57
• E)4.13

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Definitions:

Euglenoids

Single-celled organisms found in freshwater environments, characterized by their elongated shapes and the presence of a flagellum for movement.

Gut-dwelling

Referring to organisms that live within the digestive tract of a host, contributing to or affecting the host's health and nutritional status.

Ciliates

Single-celled or colonial protists with cilia.

Cellulose

A complex carbohydrate comprised of glucose units, forming the primary structural component of plant cell walls.