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Course: AP®︎/College Chemistry > Unit 8

Lesson 6: Buffers

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Buffers

Google Classroom

A student prepares a buffer by combining samples of

HCN (a q)

and

NaCN (a q)

. A particle view of the buffer solution is shown below. Water molecules and cations are not depicted.

Which of the following is true about the $pH$ ‍ of the buffer? (The $p K_{a}$ ‍ of $HCN$ ‍ is $9.21$ ‍.)

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