A Buffer Is to Be Prepared by Adding Solid Sodium

question 39

Multiple Choice

A buffer is to be prepared by adding solid sodium acetate to 0.10 M CH₃COOH. Which of the following concentrations of sodium acetate will produce the most effective buffer?

• A)3.0 M CH ₃COONa
• B)2.5 M CH ₃COONa
• C)2.0 M CH ₃COONa
• D)1.5 M CH ₃COONa
• E)0.30 M CH ₃COONa

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Definitions:

Positive Reinforcement

A technique used in behavior psychology to increase the likelihood of a desirable behavior by rewarding it.

Classical Conditioning

A learning process that occurs when two stimuli are repeatedly paired; a response that is at first elicited by the second stimulus is eventually elicited by the first stimulus alone.

Peer Learning

An educational approach where individuals learn from the expertise and insights of their equals or colleagues.

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An educational approach involving groups of students working together to solve a problem or achieve a common goal.