A chemistry graduate student is given 100. mL of a 1.80M trimethylamine ((CH3),N) solution. Trimethylamine is a weak base with K,=7.4 × 10". What mass of (CH,, NHC1 should the student dissolve in the (CH3),N solution to turn it into a buffer with pH =10.99? 3/3 You may assume that the volume of the solution doesn't change when the (CH;) NHC1 is dissolved in it. Be sure your answer has a unit symbol, and round it /3 to 2 significant digits.
A chemistry graduate student is given 100. mL of a 1.80M trimethylamine ((CH3),N) solution. Trimethylamine is a weak base with K,=7.4 × 10". What mass of (CH,, NHC1 should the student dissolve in the (CH3),N solution to turn it into a buffer with pH =10.99? 3/3 You may assume that the volume of the solution doesn't change when the (CH;) NHC1 is dissolved in it. Be sure your answer has a unit symbol, and round it /3 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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