An Aqueous Solution Is Prepared by Dissolving the Salt Formed

question 82

Multiple Choice

An aqueous solution is prepared by dissolving the salt formed by the neutralization of a weak acid by a weak base. Which statement about the solution is correct?

• A)The solution is strongly basic.
• B)The solution is weakly basic.
• C)The solution is neutral.
• D)The solution is acidic.
• E)The values for K _a and K _b for the species in solution must be known before a prediction can be made.

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Definitions:

Concurrent Validity

Concurrent validity is the extent to which test scores or measurements are correlated with other measures or outcomes that are theoretically related and taken at the same time.

Predictive Validity

How well a result from a test or scale forecasts subsequent performance in a connected area.

Face Validity

The degree to which a test or measure appears effectively to assess what it is supposed to assess, based on casual inspection.

Content Validity

An indicator of construct validity of a measure in which the content of the measure is compared to the universe of content that defines the construct.