Concept explainers
(a)
Interpretation:
The volume of oxygen produced and the amount of current produced in the given
Concept Introduction:
Oxygen evolution reactions are electrochemical reactions which can result in the splitting of water and release of oxygen gas in anode.
The amount of electrical charge that is passing through a circuit depends upon the amount and time of the flow of current. The electrical charge is measured in Coulomb.
Where,
Faradays First law of
Where,
Ideal gas equation is an equation that is describing the state of a imaginary ideal gas.
Where,
(b)
Interpretation:
The volume of oxygen produced and the amount of current produced in the given electrochemical reaction has to be calculated.
Concept Introduction:
Oxygen evolution reactions are electrochemical reactions which can result in the splitting of water and release of oxygen gas in anode.
The amount of electrical charge that is passing through a circuit depends upon the amount and time of the flow of current. The electrical charge is measured in Coulomb.
Where,
Faradays First law of electrolysis says that the quantity of substance deposited on an electrode is proportional to the charge passed through the solution.
Where,
Ideal gas equation is an equation that is describing the state of a imaginary ideal gas.
Where,
Want to see the full answer?
Check out a sample textbook solutionChapter 18 Solutions
Aleks 360 Access Card (1 Semester) For Chemistry: Atoms First
- Hydrazine, N2H4, has been proposed as the fuel in a fuel cell in which oxygen is the oxidizing agent. The reactions are N2H4(aq) + 4 OH(aq) N2(g) + 4 H2O() + 4e O2(g) + 2 H2O() + 4e 4 OH(aq) (a) Which reaction occurs at the anode and which at thecathode? (b) What is the overall cell reaction? (c) If the cell is to produce 0.50 A of current for 50.0 h, calculate what mass in grams of hydrazine must be present. (d) Calculate what mass (g) of O2 must be available to reactwith the mass of N2H4 determined in part (c).arrow_forwardElectrolysis of a solution of CuSO4(aq) to give copper metal is carried out using a current of 0.66 A. How long should electrolysis continue to produce 0.50 g of copper?arrow_forwardAn electrode is prepared from liquid mercury in contact with a saturated solution of mercury(I) chloride, Hg2Cl, containing 1.00 M Cl . The cell potential of the voltaic cell constructed by connecting this electrode as the cathode to the standard hydrogen half-cell as the anode is 0.268 V. What is the solubility product of mercury(I) chloride?arrow_forward
- In the commercial preparation of aluminum, aluminum oxide, Al2O3, is electrolyzed at 1000C. (The mineral cryolite is added as a solvent.) Assume that the cathode reaction is Al3+3eAl How many coulombs of electricity are required to give 3.9 kg of aluminum?arrow_forwardAn electrode is prepared by dipping a silver strip into a solution saturated with silver thiocyanate, AgSCN, and containing 0.10 M SCN . The cell potential of the voltaic cell constructed by connecting this electrode as the cathode to the standard hydrogen half-cell as the anode is 0.45 V. What is the solubility product of silver thiocyanate?arrow_forwardConsider a galvanic cell for which the anode reaction is 3 Pb(s)Pb2+(1.0102M)+2e and the cathode reaction is VO2+(0.10M)+2H3O+(0.10M)+eV3+(1.0105M)+3H2O(l) The measured cell potential is 0.640 V. Calculate E for the VO2+V3+ half-reaction, usingE(Pb2+Pb) from Appendix E. Calculate the equilibrium constant (K) at 25°C for thereaction Pb(s)+2VO2+(aq)+4H3O+(aq)Pb2+(aq)+2V3+(aq)+6H2O(l)arrow_forward
- Sodium hypochlorite is produced by the electrolysis of cold sodium chloride solution. How long must a cell operate to produce 1.500103 L of 5.00% NaClO by mass if the cell current is 2.00103 A? Assume that the density of the solution is 1.00 g/cm3.arrow_forwardHydrogen gas is produced when water is electrolyzed. 2H2O(g)2H2(g)+O2(g) A balloonist wants to fill a balloon with hydrogen gas. How long must a current of 12.0 A be used in the electrolysis of water to fill the balloon to a volume of 10.00 L and a pressure of 0.924 atm at 22°C?arrow_forwardAssume the following electrochemical cell simulates the galvanic cell formed by copper and zinc in seawater at pH 7.90 and 25 C. Zn | Zn(OH)2(s) | OH(aq) || Cu(OH)2(s) | Cu(s) a. Write a balanced equation for the reaction that occurs at the cathode. b. Write a balanced equation for the reaction that occurs at the anode. c. Write a balanced chemical equation for the overall reaction. d. Determine the potential (in volts) of the cell.arrow_forward
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningGeneral 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 Learning
- Principles of Modern ChemistryChemistryISBN:9781305079113Author:David W. Oxtoby, H. Pat Gillis, Laurie J. ButlerPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning