To calculate:
a) The
b) The
c) The concentration of dimethylamine
Answer to Problem 15.64QA
Solution:
a)
b)
c)
Explanation of Solution
1) Concept:
Using RICE table and
2) Formula:
i)
ii)
iii)
3) Given:
i)
ii)
iii)
4) Calculations:
a) To calculate the pH of trimethylamine, we use RICE table and initial concentrations.
RICE table for the given reaction:
Reaction | ||||
Initial(I) | ||||
Change(C) | ||||
Equilibrium(E) |
Solving this quadratic equation, we can get two values of x.
Concentration is never negative; therefore, we will use the positive value of
b) To calculate the pH of methylamine, we will use RICE table and initial concentrations.
RICE table for the given reaction:
Reaction | ||||
Initial(I) | ||||
Change(C) | ||||
Equilibrium(E) |
Solving this quadratic equation, we can get two values of x.
Concentration is never negative; therefore, we will use the positive value of
c) To calculate the concentration of dimethylamine, we use Kb expression and RICE table.
Dimethyl amine solution has the same
Therefore,
Let’s assume the initial dimethylamine concentration as
RICE table for given reaction:
Reaction | ||||
Initial(I) | ||||
Change(C) | ||||
Equilibrium(E) |
Conclusion:
Using RICE table and the
Want to see more full solutions like this?
Chapter 15 Solutions
CHEMISTRY ATOM FOCUSED EBK W/ A.C. >I<
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY