A chemistry graduate student is given 100. mL. of a 0.60M trimethylamine (CH, N: solution. Trimethylamine is a weak base with K =7.4x 10". What mass of (CH,) NHCI should the student dissolve In the (CH,) N solution to turn it Into a buffer with pH = 11.41? You may assume that the volume of the solution doesn't change when the (CH, N HCI 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 100. mL. of a 0.60M trimethylamine (CH, N: solution. Trimethylamine is a weak base with K =7.4x 10". What mass of (CH,) NHCI should the student dissolve In the (CH,) N solution to turn it Into a buffer with pH = 11.41? You may assume that the volume of the solution doesn't change when the (CH, N HCI Is dissolved In it. Be sure your answer has a unit symbol, and round It to 2 significant digits.

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter15: Acid–base Equilibria

Section: Chapter Questions

Problem 57P

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