A chemistry graduate student is given 250. ml. of a 0.90 M diethylamine ((C₂H3)₂NH) solution. Diethylamine is a weak base with K-1.3 x 103. What mass of (C₂lls), NH, Br should the student dissolve in the (C₂H5), NH solution to turn it into a buffer with pH = 11.06 ? You may assume that the volume of the solution doesn't change when the (C₂H3)₂NH₂Br 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 250. ml. of a 0.90 M diethylamine ((C₂H3)₂NH) solution. Diethylamine is a weak base with K-1.3 x 103. What mass of (C₂lls), NH, Br should the student dissolve in the (C₂H5), NH solution to turn it into a buffer with pH = 11.06 ? You may assume that the volume of the solution doesn't change when the (C₂H3)₂NH₂Br is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits.
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Chapter17: Solubility And Complex-ion Equilibria
Section: Chapter Questions
Problem 17.113QP: An analytical chemist has a solution containing chloride ion, Cl. She decides to determine the...
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Transcribed Image Text:O ACIDS AND BASES
Calculating the composition of a buffer of a given pH
POD 0/5
C
A chemistry graduate student is given 250. ml. of a 0.90 M diethylamine ((C₂H)₂NH) solution. Diethylamine is a weak
base with K=1.3 x 103. What mass of (C₂ls), NH, Br should the student dissolve in the (C₂H₂)₂NH solution to turn it
into a buffer with pH = 11.06?
0
You may assume that the volume of the solution doesn't change when the (C₂H₂)₂NH₂Br is dissolved in it. Be sure your
answer has a unit symbol, and round to 2 significant digits.
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