Question 1
Which of the following best describes a buffer solution?
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Chemistry · Unit 3 · Chemical equilibrium systems · Chemical equilibrium
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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Question 2
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 3
Identify the solution that would act as a buffer.
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