A chemistry graduate student is given 250. mL of a 1.30M pyridine (C,H,N) solution. Pyridine is a weak base with K, =1.7 x 10 What mass of CH,NHBr should the student dissolve in the CH N solution to turn it into a buffer with pH = 5.22? You may assume that the volume of the solution doesn't change when the CH NHBR is dissolved in it. Be sure your answer has a unit symbol, and round 2 significant digits.
A chemistry graduate student is given 250. mL of a 1.30M pyridine (C,H,N) solution. Pyridine is a weak base with K, =1.7 x 10 What mass of CH,NHBr should the student dissolve in the CH N solution to turn it into a buffer with pH = 5.22? You may assume that the volume of the solution doesn't change when the CH NHBR is dissolved in it. Be sure your answer has a unit symbol, and round 2 significant digits.
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter14: Acid-base Equilibria
Section: Chapter Questions
Problem 102E: A 5.36-g sample of NH4Cl was added to 25.0 mL of 1.00 M NaOH and the resulting solution diluted to...
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A chemistry graduate student is given 250, ml, of a 1.30 M pyridine (C5H5N) solution, Pyridine is a weak base with Kg = 1.7 x10^-9. What mass of
C5H5NHBr should the student dissolve in the C5H5N solution to turn it into a buffer with pH = 5.227
You may assume that the volume of the solution doesn't change when the C5H5NHBr is dissolved in it. Be sure your answer has a unit symbol, and round it to
2 significant digits.
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