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 (CH, NHB should the student dissolve in the (CH, N solutlon to turn It into a buffer with pH = 11.107 3 mass of You may assume that the volume of the solution doesn't change when the (CH, NHB Is dissolved in It. Be sure your answer has a unit symbol, and round It 13 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 (CH, NHB should the student dissolve in the (CH, N solutlon to turn It into a buffer with pH = 11.107 3 mass of You may assume that the volume of the solution doesn't change when the (CH, NHB Is dissolved in It. Be sure your answer has a unit symbol, and round It 13 to 2 significant digits.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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A chemistry graduate student is given 300. mL of a 1.50M trimethylamine ((CH,) N) solution. Trimethylamine is a weak base with K,=7.4x 10 *. what
mass of (CH,) NHBr should the student dissolve in the (CH,) N solution to turn it Into a buffer with pH =11.107
3.
3
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.
x10
Explanation
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