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Question 10.13: Identifying Buffer Solutions Indicate whether each of the fo...

Identifying Buffer Solutions

Indicate whether each of the following would make a buffer solution:

a. HCl, a strong acid, and NaCl

b. H_3PO_4, a weak acid

c. HF, a weak acid, and NaF

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a. No. A buffer requires a weak acid and a salt containing its conjugate base.

b. No. A weak acid is part of a buffer, but the salt containing the conjugate base of the weak acid is also needed.

c. Yes. This mixture would be a buffer since it contains a weak acid and a salt containing its conjugate base.

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