Which one of the following statements is TRUE? Which one of the following statements is TRUE? A buffer is an aqueous solution composed of two weak acids. A buffer resists pH change by neutralizing added acids and bases. A buffer can absorb an unlimited amount of base. A buffer does not change pH when strong acid is added. None of the above are true.

A buffer resists pH change by neutralizing added acids and bases.

Explanation:

A buffer is an aqueous solution composed of two weak acids. False. A buffer is the mixture of a weak acid with its conjugate base or vice versa.

A buffer resists pH change by neutralizing added acids and bases. True. A buffer reacts with acid or base neutralizing, thus, pH change.

A buffer can absorb an unlimited amount of base. False. A buffer works just when ratio between substances in the mixture is 1:10.

A buffer does not change pH when strong acid is added. False. A buffer decreases change of pH by addition of acid or base but pH in a buffer change when acids are added.

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answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error