Concept explainers
(a)
Interpretation:
The reactions that take place at the cathode and the anode when molten
Concept introduction:
The non-spontaneous reaction takes place in an electrolytic cell in which there occurs conversion of electrical energy into chemical energy and this is used for the
To determine: The reactions that take place at the cathode and the anode when molten
The reaction taking place at cathode is,
The reaction taking place at anode is,
(b)
Interpretation:
The reactions that take place at the cathode and the anode when molten
Concept introduction:
The non-spontaneous reaction takes place in an electrolytic cell in which there occurs conversion of electrical energy into chemical energy and this is used for the electrolysis of a metal. The electrolytic cell involves a cathode and an anode, both dipped into an electrolytic solution having both the positive and negative ions.
To determine: The reactions that take place at the cathode and the anode when molten
The reaction taking place at cathode is,
The reaction taking place at anode is,
(c)
Interpretation:
The reactions that take place at the cathode and the anode when molten
Concept introduction:
The non-spontaneous reaction takes place in an electrolytic cell in which there occurs conversion of electrical energy into chemical energy and this is used for the electrolysis of a metal. The electrolytic cell involves a cathode and an anode, both dipped into an electrolytic solution having both the positive and negative ions.
To determine: The reactions that take place at the cathode and the anode when molten
The reaction taking place at cathode is,
The reaction taking place at anode is,
Trending nowThis is a popular solution!
Chapter 17 Solutions
Chemistry: An Atoms First Approach
- A mercury battery, used for hearing aids and electric watches, delivers a constant voltage (1.35 V) for long periods. The half-reactions are HgO(s)+H2O(l)+2eHg(l)+2OH(aq)Zn(s)+2OH(aq)Zn(OH)2(s)+2e Which half-reaction occurs at the anode and which occurs at the cathode? What is the overall cell reaction?arrow_forward. Consider the oxidation—reduction reaction Zn(s)+Pb2+(aq)Zn2+(aq)+Pb(s)Sketch a galvanic cell that uses this reaction. Which metal ion is reduced? Which metal is oxidized? What half-reaction takes place at the anode in the cell? What half-reaction takes place at the cathode?arrow_forwardWhich member of each pair of metals is more likely to corrode (oxidize)? (a) Mg or Ca (b) Au or Hg (c) Fe or Zn (d) Ag or Ptarrow_forward
- The specifications for a lead storage battery include delivery of a steady 1.5 A of current for 15 hours. (a) What is the minimum mass of lead that will be used in the anode? (b) What mass of PbO2 must be used in the cathode? (c) Assume that the volume of the battery is 0.50 L. What is the minimum molarity of H2SO4 necessary?arrow_forwardA factory wants to produce 1.00 103 kg barium from the electrolysis of molten barium chloride. What current must be applied for 4.00 h to accomplish this?arrow_forwardA silver oxidezinc cell maintains a fairly constant voltage during discharge (1.60 V). The button form of this cell is used in watches, hearing aids, and other electronic devices. The half-reactions are Zn(s)+2OH(aq)Zn(OH)2(s)+2eAg2O(s)+H2O(l)+2e2Ag(s)+2OH(aq) Identify the anode and the cathode reactions. What is the overall reaction in the voltaic cell?arrow_forward
- An electrolysis cell for aluminum production operates at 5.0 V and a current of 1.0105 A. Calculate the number of kilowatt-hours of energy required to produce 1 metric ton ( 1.0103 kg) of aluminum. ( 1kWh=3.6106 J and 1J=1 C V.)arrow_forwardA magnesium bar with a mass of 6.0 kg is attached to a buried iron pipe to serve as a sacrificial anode. An average current of 0.020 A flows between the bar and the pipe. (a) What reaction takes place at the surface of the magnesium bar? (b) What reaction takes place at the surface of the iron pipe? (C) In which direction do electrons flow between the two surfaces? (d) How many years would it take for the entire magnesium bar to be consumed?arrow_forwardThe following diagram shows an electrochemical cell. Fill in a and b with the correct labels for the anode and the cathode. Fill in the blank spaces labeled c and d with the correct chemical species. Fill in the blank space labeled e with an arrow showing the correct direction of electron flow.arrow_forward
- A voltaic cell can be built using the reaction between Al metal and O2 from the air. If the Al anode of this cell consists of 84 g of aluminum, how many hours can the cell produce 1.0 A of electricity, assuming an unlimited supply of O2?arrow_forwardCalculate the standard free energy change for the following reactions using the standard cell potentials for the half-reactions that are involved. (a) Fe(s)+Hg22+(aq)Fe2+(aq)+2Hg(l) (b Fe3+(aq)+Ag(s)+Cl-(aq)Fe2+(aq)+AgCl(s) (c) 2MnO4(aq)+5Zn(s)+16H3O+(aq)2Mn2+(aq)+5Zn2+(aq)+24H2O(l)arrow_forwardWrite the following balanced reactions using cell notation. Use platinum as an inert electrode, if needed.. (a) Mg(s)+Ni2+(aq)Mg2+(aq)+Ni(s) (b) 2Ag+(aq)+Cu(s)Cu2(aq)+2Ag(s) (c) Mn(s)+Sn(NO3)2(aq)Mn(NO3)2(aq)+Au(s) (d) 3CuNO3(aq)+Au(NO3)3(aq)3Cu(NO3)2(aq)+Au(s)arrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning
- Chemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher: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 LearningIntroductory Chemistry: A FoundationChemistryISBN:9781285199030Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning