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A chemistry graduate student is given 300. mL of a 1.20M methylamine (CH3NH₂) solution. Methylamine is a weak base with K₁=4.4 x 10-4. What mass of CH3NH₂Br should the student dissolve in the CH3NH₂ solution to turn it into a buffer with pH = 10.16? You may assume that the volume of the solution doesn't change when the CH3NH₂Br 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 300. mL of a 1.20M methylamine (CH3NH₂) solution. Methylamine is a weak base with K₁=4.4 x 10-4. What mass of CH3NH₂Br should the student dissolve in the CH3NH₂ solution to turn it into a buffer with pH = 10.16? You may assume that the volume of the solution doesn't change when the CH3NH₂Br 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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A chemistry graduate student is given 300. mL of a 1.20M methylamine (CH3NH₂) solution. Methylamine is a weak base with K₁=4.4 × 104. What mass of CH₂NH₂Br should the student dissolve in the CH3NH₂ solution to turn it into a buffer with pH = 10.16? You may assume that the volume of the solution doesn't change when the CH3NH₂Br is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits. 0 x10 X Ś ? 0 000 18 Ar
Transcribed Image Text:A chemistry graduate student is given 300. mL of a 1.20M methylamine (CH3NH₂) solution. Methylamine is a weak base with K₁=4.4 × 104. What mass of CH₂NH₂Br should the student dissolve in the CH3NH₂ solution to turn it into a buffer with pH = 10.16? You may assume that the volume of the solution doesn't change when the CH3NH₂Br is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits. 0 x10 X Ś ? 0 000 18 Ar
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