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chemistry graduate student is given 450. mL of a 0.50M trimethylamine ((CH3)₂N) N solution. Trimethylamine is a weak base with What mass of (CH3)₂NHBr should the student dissolve in the (CH3)2N solution to turn into a buffer with =7.4×10 -b DH = 11.20? You may assume that the volume of the solution doesn't change when the (CH3)₂NHBr is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits. B

chemistry graduate student is given 450. mL of a 0.50M trimethylamine ((CH3)₂N) N solution. Trimethylamine is a weak base with What mass of (CH3)₂NHBr should the student dissolve in the (CH3)2N solution to turn into a buffer with =7.4×10 -b DH = 11.20? You may assume that the volume of the solution doesn't change when the (CH3)₂NHBr is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits. B

Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter15: Complex Ion And Precipitation Equilibria
Section: Chapter Questions
Problem 35QAP: A solution is made up by adding 0.632 g of barium nitrate and 0.920 g of lanthanum nitrate, to...
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A chemistry graduate student is given 450. mL of a 0.50M trimethylamine ((CH3)N) solution. Trimethylamine is a weak base with K₁=7.4 × 10¯ª. What mass of (CH3)NHBr should the student dissolve in the (CH3)2N solution to turn it into a buffer with pH = 11.20? You may assume that the volume of the solution doesn't change when the (CH3) NHBr is dissolved in it. Be sure your answer has a 3 unit symbol, and round it to 2 significant digits. ? 10: 000
Transcribed Image Text:A chemistry graduate student is given 450. mL of a 0.50M trimethylamine ((CH3)N) solution. Trimethylamine is a weak base with K₁=7.4 × 10¯ª. What mass of (CH3)NHBr should the student dissolve in the (CH3)2N solution to turn it into a buffer with pH = 11.20? You may assume that the volume of the solution doesn't change when the (CH3) NHBr is dissolved in it. Be sure your answer has a 3 unit symbol, and round it to 2 significant digits. ? 10: 000
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