Question:

A chemistry graduate student is given 500, mL of a 0.90 M

Last updated: 7/28/2022

A chemistry graduate student is given 500, mL of a 0.90 M

A chemistry graduate student is given 500, mL of a 0.90 M dimethylamine ((CH₃)₂NH) solution. Dimethylamine is a weak base with Kb=5.4 x 10-⁴. What mass of (CH₃)₂NH₂ Br should the student dissolve in the (CH₃)₂NH solution to turn it into a buffer with pH = 10.87 ? You may assume that the volume of the solution doesn't change when the (CH₃)₂NH₂ Br is dissolved in it.

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