(a)
Interpretation:
The
pH definition:
The concentration of hydrogen ion is measured using
The
On rearranging, the concentration of hydrogen ion
(a)
Answer to Problem 6D.18E
The
Explanation of Solution
The proton transfer equilibrium reaction for the base of
The equilibrium expression for the above reaction is given below.
Initial concentration | 0.015 | 0 | 0 |
Change in concentration | -x | +x | +x |
Equilibrium concentration | 0.015-x | x | x |
The
The equilibrium concentration values obtained in the above table is substituted in the above equation and is given below.
The
The above equation, assume that the x present in
The
The general equilibrium expression to find out the pH of the solution is given below,
Therefore, the calculated
(b)
Interpretation:
The
Concept introduction:
Refer to part (a).
(b)
Answer to Problem 6D.18E
The
Explanation of Solution
The proton transfer equilibrium reaction for the base of
The equilibrium expression for the above reaction is given below.
Initial concentration | 0.086 | 0 | 0 |
Change in concentration | -x | +x | +x |
Equilibrium concentration | 0.086-x | x | x |
The
The equilibrium concentration values obtained in the above table is substituted in the above equation and is given below.
The
The above equation, assume that the x present in
The
The general equilibrium expression to find out the pH of the solution is given below,
Therefore, the calculated
Want to see more full solutions like this?
Chapter 6 Solutions
EBK CHEMICAL PRINCIPLES
- When carbon dioxide dissolves in water it reacts to produce carbonic acid, H2CO3(aq), which can ionize in two steps. H2CO3(aq)HCO3(aq)+H+(aq)Kc1=4.2107HCO3(aq)CO32(aq)+H+(aq)Kc2=4.81011 Calculate the equilibrium constant for the reaction H2CO3(aq)CO32(aq)+2H+(aq)arrow_forwardThe equilibrium constant for the reaction 2CrO42(aq)+2H+(aq)Cr2O72(aq)+H2O is 31014 . What must the pH be so that the concentrations of chromate and dichromate ion are both 0.10 M?arrow_forwardA galvanic cell is constructed in which the overall reactionis Cr2O72(aq)+14H2O+(aq)+6I(aq)2Cr3+(aq)+3I2(s)+21H2O(l) Calculate E for this cell. At pH 0, with [Cr2O72]=1.5M and [I]=0.40M, the cell potential is found to equal 0.87 V. Calculatethe concentration of Cr3+(aq) in the cell.arrow_forward
- What volume of chlorine gas at standard temperature and pressure is evolved when a solution of MgCl2 is electrolyzed using a current of 12.4 A for 1.0 h?arrow_forwardCalculate the ph of a solution prepared by dissolving 1.00g of sodium acetate,CH^3COONa, in 50.0ml of 0.15 M acetate acid, CH^3COOH(aq)arrow_forwardEstimate the pH and the fraction of CH3COOH molecules deprotonated in 0.15 M CH3COOH(aq).arrow_forward
- The solution of total volume 0.50 L was prepared by the addition of 0.10 moles of KF to sifficient water. What are the major species of the solution and pH ?arrow_forwardSurface water in an open area of the Indian Ocean adjacent to Kenja has an alkalinity 2320 micromoles/liter and a total carbonate concentration of 2.03 x 10^-3 moles/liter. Calculate the concentrations of HCO3- and CO32-, and also the pH of this sea water.arrow_forwardCalculate the pH of 0.1 mol dm-3 potassium hydroxide (KOH(aq))arrow_forward
- A constant current flows for 3.75 h through an electrolytic cell containing aqueous AgNO3(aq). During this time, 2.00 g of silver are deposited on the electrode. What is the current flowing through the cell?arrow_forwardThe standard Gibbs energy of formation of gaseous ozone at 25.0 ℃ ΔfGo, is162.3 kJ. mol-1, for standard state of 1 bar. The reaction is: 3O2 (g) ⇌ 2O3(g). Calculate the value of the equilibrium constant, K, for the above reaction.arrow_forwardWhat is the electrical current, in Amperes, that must be applied if 6.50 g Ag is deposited at the cathode in 2.00 hrs during the electrolysis of AgNO3 (aq)?arrow_forward
- Principles of Modern ChemistryChemistryISBN:9781305079113Author:David W. Oxtoby, H. Pat Gillis, Laurie J. ButlerPublisher:Cengage LearningChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
- General Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning