Concept explainers
Interpretation:
The mass of
Concept introduction:
pH is the measure of acidity of a solution, which depends on the concentration of hydronium ions and the temperature of the solution.
The formula to calculate
The relationship between
The value of
The ionization of the weak base takes place as:
The number of moles
Here,
Molarity
Here,
Answer to Problem 165AP
Solution:
Explanation of Solution
Given information:
The pH of methylamine
Use equation (1) to calculate the concentration of hydronium ions in the solution with the use of pH as:
Now, use equation (2) to calculate the value of
Refer to table
The reaction of methylamine is depicted as:
Prepare an equilibrium table and represent each of the species in terms of
Now, substitute these concentrations in equation (3) as follows:
Now, substitute the value of
Thus,
The molarity of methylamine is
Here,
The molar mass of
Here,
The mass for the methylamine solution in water is
Want to see more full solutions like this?
Chapter 16 Solutions
Aleks 360 Access Card 1 Semester For Introductory Chemistry
- What is the pH of a solution obtained by mixing 235 mL of NaOH with a pH of 11.57 and 316 mL of Sr(OH)2 with a pH of 12.09? Assume that volumes are additive.arrow_forwardIndicate whether each of the following samples is acidic, basic, or neutral. a. butter, pH 6.1 b. lemon juice, pH 2.2 c. peach, pH 3.5 d. milk of magnesia, pH 10.5arrow_forwardA sample of vinegar has a hydronium-ion concentration of 3.0 103 M. What is the pH of the vinegar?arrow_forward
- A 1000.-mL solution of hydrochloric acid has a pH of 1.3. Calculate the mass (g) of HCl dissolved in the solution.arrow_forwardWrite the reaction and the corresponding Kb equilibrium expression for each of the following substances acting as bases in water. a. aniline, C6H5NH2 b. dimethylamine, (CH3)2NHarrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning
- Chemistry by OpenStax (2015-05-04)ChemistryISBN:9781938168390Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark BlaserPublisher:OpenStaxGeneral, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning