A chemistry graduate student is given 250. mL of a 0.50M 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 =11.09? You may assume that the volume of the solution doesn't change when the (CH,) NHCI 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 250. mL of a 0.50M 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 =11.09? You may assume that the volume of the solution doesn't change when the (CH,) NHCI is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter15: Additional Aqueous Equilibria

Section: Chapter Questions

Problem 93QRT: When 40.00 mL of a weak monoprotic acid solution is titrated with 0.100-M NaOH, the equivalence...

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