Formic Acid Is Used in the Venom of Some Species

question 45

Multiple Choice

Formic acid is used in the venom of some species of ants. What is the pH of a 0.2 M solution of formic acid (K_a = 1.78 × 10^-4 M) ?

• A) 8.90
• B) 4.45
• C) 3.75
• D) 2.2 Ionization of Water, Weak Acids, and Weak Bases2
• E) 1.72

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Definitions:

Utility

A measure of satisfaction or happiness that a consumer derives from consuming goods and services.

Income-Consumption Curve

Curve tracing the utility-maximizing combinations of two goods as a consumer’s income changes.

Utility-Maximizing

A principle or strategy of consumers making choices to achieve the highest overall level of satisfaction or utility from their available resources.

Inferior Good

An inferior good is a type of good for which demand decreases as the income of the individual increases, in contrast to a normal good.