A chemistry graduate student is given 300. mL of a 1.70M pyridine (CH,N) solution. Pyridine is a weak base with K, =1.7x 10. What mass of CH NHB should the student dissolve In the CH N solutlon 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 2 significant digits.
A chemistry graduate student is given 300. mL of a 1.70M pyridine (CH,N) solution. Pyridine is a weak base with K, =1.7x 10. What mass of CH NHB should the student dissolve In the CH N solutlon 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 2 significant digits.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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![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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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
2021 McGraw-Hill Education. All Rights Reserved. Terms of Use Privacy Accessibility
3:2
hp
Ce
esc
&
#
2$
7
9.
1
2
00
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