If a Small Amount of a Strong Acid Is Added

question 13

Multiple Choice

If a small amount of a strong acid is added to buffer made up of a weak acid,HA,and the sodium salt of its conjugate base,NaA,the pH of the buffer solution does not change appreciably because

• A)the K_a of HA is changed.
• B)the strong acid reacts with A^- to give HA,which is a weak acid.
• C)no reaction occurs.
• D)the strong acid reacts with HA to give H₂A⁺.
• E)the strong acid reacts with A^- to give H₂A⁺.

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Definitions:

Meta-Analyses

A statistical technique that combines the results of multiple scientific studies to arrive at a comprehensive conclusion.

Conceptual Replications

Attempts to confirm previous research findings using different methods or procedures to test the same underlying hypotheses.

Exact Replications

The attempt to precisely recreate the conditions and methodology of a study to verify its findings, with no alterations.

Meta-Analysis

A statistical method that combines the results of multiple scientific studies to arrive at a conclusion that has greater statistical power.