Identify that buffers are solutions that are conjugate in nature and resist a change in pH when a small amount of an acid or base is added. (Buffer calculations are not required.)

Question 1

Question 1

A student prepares a solution containing 0.50 mol L$^{-1}$ ethanoic acid (CH$_3$COOH) and 0.50 mol L$^{-1}$ sodium ethanoate (CH$_3$COONa). Identify why this solution acts as a buffer. Explain how the conjugate components prevent a large change in pH when a small amount of hydrochloric acid is added.

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Question 2

Question 2

Identify the solution that would act as a buffer.

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Question 3

Question 3

Which of the following best describes a buffer solution?

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Identify that buffers are solutions that are conjugate in nature and resist a change in pH when a small amount of an acid or base is added. (Buffer calculations are not required.)

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