An Acetate Buffer Has a PH of 4

question 79

Multiple Choice

An acetate buffer has a pH of 4.40. Which of the following changes will cause the pH to decrease?

• A) dissolving a small amount of solid sodium acetate
• B) adding a small amount of dilute hydrochloric acid
• C) adding a small amount of dilute sodium hydroxide
• D) dissolving a small amount of solid sodium chloride
• E) diluting the buffer solution with water

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Definitions:

Polarizable

Refers to the ability of a molecule or atom to undergo distortion of its electron cloud in response to an external electric field, affecting its physical and chemical properties.

Electronegativity

A chemical property that describes the ability of an atom to attract electrons towards itself in a chemical bond.

Starting Materials

The substances used at the beginning of a synthesis or a chemical reaction.

Reactivity

The inclination of a substance to participate in a chemical reaction, alone or in combination with other substances.