Transcribed Image Text: A chemistry graduate student is given 300

Transcribed Image Text: A chemistry graduate student is given 300. mL of a 1.70M pyridine (C.H.N) solution. Pyridine Is a weak base with K,=1.7× 10°. What mass of
-9
5*5
C H NHBR should the student dissolve in the C.H.N solution to turn it Into a buffer with pH =5.187
You may assume that the volume of the solution doesn’t change when the C_H.NHBR is dissolved in it. Be sure your answer has a unit symbol, and round it to
5-5
2 significant digits.
dlo
Ar
x10
Explanation
Check
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