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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.

Chemistry
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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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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.
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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