Which of the Following Acids Should Be Used to Prepare $\times$

question 82

Multiple Choice

Which of the following acids should be used to prepare a buffer with a pH of 4.5?

• A)HOC₆H₄OCOOH,K_a = 1.0 \(\times\) 10^-3
• B)C₆H₄(COOH)₂,K_a = 2.9 \(\times\) 10^-4
• C)CH₃COOH,K_a = 1.8 \(\times\) 10^-5
• D)C₅H₅O₅COOH^-2,K_a = 4.0 \(\times\) 10^-6
• E)HBrO,K_a = 2.3 \(\times\) 10^-9

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Definitions:

Economic Efficiency

The optimal allocation of resources to maximize the production of goods and services.

Marginal Happiness

The additional satisfaction or utility that a person gains from receiving or consuming one more unit of a good or service.

Sequential Stages

Sequential stages are the consecutive phases or steps in a process or system, where each stage follows the previous one in an orderly progression.

Moral Development

A process through which individuals evolve their understanding of what is right and wrong, often described through stages by psychologists.