A chemlstry graduate student Is glven 300. mL of a 1.50M trimethylamine ((CH, N solutlon. Trimethylamine Is a weak base with K, =7.4 x 10. What (CH3),NHBr should the student dissolve In the (CH,),N solution to turn It Into a buffer with pH = 11.107 mass of You may assume that the volume of the solution doesn't change when the (CH,) NHB1 is dissolved in it. Be sure your answer has a unit symbol, and round It to 2 significant digits.

A chemlstry graduate student Is glven 300. mL of a 1.50M trimethylamine ((CH, N solutlon. Trimethylamine Is a weak base with K, =7.4 x 10. What (CH3),NHBr should the student dissolve In the (CH,),N solution to turn It Into a buffer with pH = 11.107 mass of You may assume that the volume of the solution doesn't change when the (CH,) NHB1 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

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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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

A chemistry graduate student Is glven 300. mL of a 1.50M trimethylamine ((CH, N solutlon. Trimethylamine Is a weak base with K,=7.4x 10 ". what
3.
mass of (CH,NHBr should the student dissolve in the (CH, N solutlon to turn It Into a buffer with pH = 11.107
(CH),
3
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 It
3
to 2 significant digits.
do
Ar
x10
Check
Explanation
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