A chemistry graduate student is given 125. mL of a 1.30M dimethylamine ((CH,) NH) solution. Dimethylamine is a weak base with K,=5.4 x 10. what mass of (CH,), NH,Cl should the student dissolve in the (CH,) NH solution to turn it into a buffer with pH =10.80? You may assume that the volume of the solution doesn't change when the (CH, NH,Cl 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 125. mL of a 1.30M dimethylamine ((CH,) NH) solution. Dimethylamine is a weak base with K,=5.4 x 10. what mass of (CH,), NH,Cl should the student dissolve in the (CH,) NH solution to turn it into a buffer with pH =10.80? You may assume that the volume of the solution doesn't change when the (CH, NH,Cl is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits.
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Transcribed Image Text:A chemistry graduate student is given 125. mL of a 1.30M dimethylamine ((CH,) NH solution. Dimethylamine is a weak base with K,=5.4 × 10 . What
mass of (CH,), NH, Cl should the student dissolve in the (CH,) NH solution to turn it into a buffer with pH =10.80?
You may assume that the volume of the solution doesn't change when the (CH, NH, Cl is dissolved in it. Be sure your answer has a unit symbol, and round it
to 2 significant digits.
10
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