A Buffer Is Prepared by Adding 100 ML of 0

question 13

Multiple Choice

A buffer is prepared by adding 100 mL of 0.50 M sodium hydroxide to 100 mL of 0.75 M propanoic acid. Is this a buffer solution, and if so, what is its pH?

• A)It is a buffer, pH > pK _a of propanoic acid.
• B)It is a buffer, pH < pK _a of propanoic acid.
• C)It is a buffer, pH = pK _a of propanoic acid.
• D)It is a buffer, pH = pK _b of sodium propanoate.
• E)Since sodium hydroxide is a strong base, this is not a buffer.

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Definitions:

Central Tendency

A statistical measure that identifies a single value as representative of an entire distribution of data.

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Proportion

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