Answered: the pH value of an aqueous solution of…

the pH value of an aqueous solution of trimethylamine [(CH3)3N] is 10.75, what should the molarity of this solution be? (CH3)3N + H2O ↔ (CH3)3NH+ + OH-, Kb = 6,3 × 10-5

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter14: Acids And Bases

Section14.6: Molecular Structure And Acid Strength

Problem 14.14CE

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

If the pH value of an aqueous solution of trimethylamine [(CH₃)₃N] is 10.75, what should the molarity of this solution be?

(CH₃)₃N + H₂O ↔ (CH₃)₃NH⁺ + OH^-, K_b = 6,3 × 10^-5

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