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Which of these pairs of substances in aqueous solution would constitute a buffer?

a. HCl + KCl
b. KHPO4 + K2HPO4
c. KOH + KCl
d. HCl + KOH

3 answers

Buffers are mixtures of weak acid and a salt of the weak acid OR a weak base with a salt of the weak base.

a

Please correct choice B. KHOP4- + K2HPO4 OR KH2PO4 + K2HPO4

Ok...... guess it's B.

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