Chemistry: Structure and Properties & Modified MasteringChemistry with Pearson eText -- ValuePack Access Card -- for Chemistry: Structure and Properties Package
1st Edition
ISBN: 9780133884517
Author: Nivaldo J. Tro
Publisher: PEARSON
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Textbook Question
Chapter 20, Problem 92E
Write equations for the half-reactions that occur at the anode and cathode for the
- Ni(NO3)2(aq)
- KCI(aq)
- CuBr2(aq)
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Chapter 20 Solutions
Chemistry: Structure and Properties & Modified MasteringChemistry with Pearson eText -- ValuePack Access Card -- for Chemistry: Structure and Properties Package
Ch. 20 - Balance the redox reaction equation (occurring in...Ch. 20 - Prob. 2SAQCh. 20 - Prob. 3SAQCh. 20 - Refer to Table 19.1 to determine which statement...Ch. 20 - Prob. 5SAQCh. 20 - The Zn/Zn2+ electrode has a standard electrode...Ch. 20 - Refer to Table 19.1 to calculate G for the...Ch. 20 - A redox reaction has an Ecell=0.56V . What can you...Ch. 20 - Prob. 9SAQCh. 20 - Prob. 10SAQ
Ch. 20 - Prob. 11SAQCh. 20 - Prob. 12SAQCh. 20 - Which reaction occurs at the cathode of an...Ch. 20 - Copper is plated onto the cathode of an...Ch. 20 - Prob. 15SAQCh. 20 - Prob. 1ECh. 20 - Explain the difference between a voltaic (or...Ch. 20 - Prob. 3ECh. 20 - Prob. 4ECh. 20 - Prob. 5ECh. 20 - Prob. 6ECh. 20 - What is the definition of the standard cell...Ch. 20 - Describe the basic features of a cell diagram (or...Ch. 20 - Why do some electrochemical cells employ inert...Ch. 20 - Describe the standard hydrogen electrode (SHE) and...Ch. 20 - How is the cell potential of an electrochemical...Ch. 20 - Prob. 12ECh. 20 - Prob. 13ECh. 20 - How can Table 19.1be used to predict whether or...Ch. 20 - Explain why Ecell , Grxn , and K are all...Ch. 20 - Does a redox reaction with a small equilibrium...Ch. 20 - How does Ecell depend on the concentrations of the...Ch. 20 - Prob. 18ECh. 20 - What is a concentration electrochemical cell?Ch. 20 - What are the anode and cathode reactions in a...Ch. 20 - What are the anode and cathode reactions in a...Ch. 20 - Prob. 22ECh. 20 - What is a fuel cell? What is the most common type...Ch. 20 - The anode of an electrolytic cell must be...Ch. 20 - What species is oxidized, and what species is...Ch. 20 - If an electrolytic cell contains a mixture of...Ch. 20 - Why does the electrolysis of an aqueous sodium...Ch. 20 - What is overvoltage in an electrochemical cell?...Ch. 20 - How is the amount of current flowing through an...Ch. 20 - Prob. 30ECh. 20 - Prob. 31ECh. 20 - Prob. 32ECh. 20 - Balance each redox reaction occurring in acidic...Ch. 20 - Prob. 34ECh. 20 - Balance each redox reaction occurring in acidic...Ch. 20 - Prob. 36ECh. 20 - Prob. 37ECh. 20 - Balance each redox reaction occurring in basic...Ch. 20 - Prob. 39ECh. 20 - Prob. 40ECh. 20 - Calculate the standard cell potential for each of...Ch. 20 - Prob. 42ECh. 20 - Consider the voltaic cell: Determine the direction...Ch. 20 - Prob. 44ECh. 20 - Use line notation to represent each...Ch. 20 - Use line notation to represent each...Ch. 20 - a sketch of the voltaic cell represented by the...Ch. 20 - Prob. 48ECh. 20 - Determine whether or not each redox reaction...Ch. 20 - Prob. 50ECh. 20 - Which metal could you use to reduce Mn2+ ions but...Ch. 20 - Prob. 52ECh. 20 - Prob. 53ECh. 20 - Prob. 54ECh. 20 - Prob. 55ECh. 20 - Prob. 56ECh. 20 - Calculate Ecell for each balanced redox reaction...Ch. 20 - Prob. 58ECh. 20 - Prob. 59ECh. 20 - Which metal is the best reducing agent? Mn Al Ni...Ch. 20 - Use tabulated electrode potentials to calculate...Ch. 20 - Use tabulated electrode potentials to calculate...Ch. 20 - Prob. 63ECh. 20 - Calculate the equilibrium constant for each of the...Ch. 20 - Calculate the equilibrium constant for the...Ch. 20 - Prob. 66ECh. 20 - Calculate Grxn and Ecell for a redox reaction with...Ch. 20 - Prob. 68ECh. 20 - Prob. 69ECh. 20 - Prob. 70ECh. 20 - Prob. 71ECh. 20 - Prob. 72ECh. 20 - Prob. 73ECh. 20 - Prob. 74ECh. 20 - Prob. 75ECh. 20 - Consider the concentration cell: Label the anode...Ch. 20 - Prob. 77ECh. 20 - Prob. 78ECh. 20 - Prob. 79ECh. 20 - Prob. 80ECh. 20 - Refer to the tabulated values of Gf in Appendix...Ch. 20 - Refer to the tabulated values of Gf in Appendix...Ch. 20 - Prob. 83ECh. 20 - Prob. 84ECh. 20 - Prob. 85ECh. 20 - Prob. 86ECh. 20 - Prob. 87ECh. 20 - Which products are obtained in the electrolysis of...Ch. 20 - Write equations for the half-reactions that occur...Ch. 20 - Which products are obtained in the electrolysis of...Ch. 20 - Prob. 91ECh. 20 - Write equations for the half-reactions that occur...Ch. 20 - Prob. 93ECh. 20 - Prob. 94ECh. 20 - Prob. 95ECh. 20 - Silver can be electroplated at the cathode of an...Ch. 20 - A major source of sodium metal is the electrolysis...Ch. 20 - Prob. 98ECh. 20 - Prob. 99ECh. 20 - Prob. 100ECh. 20 - Consider the molecular view of an AL strip and...Ch. 20 - Consider the molecular view of an electrochemical...Ch. 20 - Prob. 103ECh. 20 - Prob. 104ECh. 20 - The cell potential of this electrochemical cell...Ch. 20 - Prob. 106ECh. 20 - Prob. 107ECh. 20 - What voltage can theoretically be achieved in a...Ch. 20 - A battery relies on the oxidation of magnesium and...Ch. 20 - A rechargeable battery is constructed based on a...Ch. 20 - If a water electrolysis cell operates at a current...Ch. 20 - Prob. 112ECh. 20 - Prob. 113ECh. 20 - Prob. 114ECh. 20 - Calculate Grxn and K for each reaction. The...Ch. 20 - Calculate Grxn and K for each reaction. The...Ch. 20 - The molar mass of a metal (M) is 50.9 g/mol; it...Ch. 20 - A metal forms the fluoride MF3. Electrolysis of...Ch. 20 - A sample of impure tin of mass 0.535 g is...Ch. 20 - Prob. 120ECh. 20 - Prob. 121ECh. 20 - A 215 mL sample of a 0.500 M NaCl solution with an...Ch. 20 - Prob. 123ECh. 20 - Prob. 124ECh. 20 - Prob. 125ECh. 20 - Prob. 126ECh. 20 - Prob. 127ECh. 20 - Prob. 128ECh. 20 - Prob. 129ECh. 20 - Three electrolytic cells are connected in a...Ch. 20 - Prob. 131ECh. 20 - Prob. 132ECh. 20 - Prob. 133ECh. 20 - Prob. 134ECh. 20 - Prob. 135E
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- Given this reaction, its standard potential, and the standard half-cell potential of 0.34 V for the Cu2+ |Cu half-cell, calculate E° for the Fe(s)|Fe2+(aq) half-cell.arrow_forwardAn electrolysis experiment is performed to determine the value of the Faraday constant (number of coulombs per mole of electrons). In this experiment, 28.8 g of gold is plated out from a AuCN solution by running an electrolytic cell for two hours with a current of 2.00 A. What is the experimental value obtained for the Faraday Constant?arrow_forwardIn principle, a battery could be made from aluminum metal and chlorine gas. (a) Write a balanced equation for the reaction thatwould occur in a battery using Al3+(aq) | Al(s) andCl2(g) | Cl(aq) half-cells. (b) Identify the half-reaction at the anode and at the cathode. Do electrons flow from the Al electrode when thecell does work? Explain. (c) Calculate the standard potential, Ecell, for the battery.arrow_forward
- For each of the following electrochemical cells, write equations for the oxidation and reduction half-reactions and for the overall reaction. (a) Cu(s)|Cu2+(aq)||Fe3+(aq), Fe2+(aq)|Pt(s) (b) Pb(s)|PbSO4(s)|SO42(aq)||Fe3+(aq), Fe2+(aq)|Pt(s)arrow_forwardFor each of the following electrochemical cells, write equations for lire oxidation and reduction half-reactions and for the overall reaction (a) Pb(s)|Pb2+(aq)||Sn4+(aq),Sn2+(aq)|C(s) (b) Hg()|Hg2Cl2(s)|Cl(aq)||Ag+(aq)|Ag(s)arrow_forwardDescribe how to set up a voltaic cell using the following half-reactions: Reduction half-reaction:Ag+(aq) + e Ag(s) Oxidation half-reaction:Ni(s) Ni2+(aq) + 2 e Which electrode is the anode, and which is the cathode? What is the overall cell reaction? What is the direction of electron flow in an external wire connecting the two electrodes? Describe the ion flow in a salt bridge (with NaNO3) connecting the cell compartments.arrow_forward
- It took 150. s for a current of 1.25 A to plate out 0.109 g of a metal from a solution containing its cations. Show that it is not possible for the cations to have a charge of 1+.arrow_forwardA voltaic cell is constructed in which one half-cell consists of a silver wire in an aqueous solution of AgNO3.The other half cell consists of an inert platinum wire in an aqueous solution containing Fe2+(aq) and Fe3+(aq). (a) Calculate the cell potential, assuming standard conditions. (b) Write the net ionic equation for the reaction occurring in the cell. (c) Which electrode is the anode and which is the cathode? (d) If [Ag+] is 0.10 M, and [Fe2+] and [Fe3+] are both 1.0 M, what is the cell potential? Is the net cell reaction still that used in part (a)? If not, what is the net reaction under the new conditions?arrow_forwardFour voltaic cells are set up. In each, one half-cell contains a standard hydrogen electrode. The second half-cell is one of the following: (i) Cr3+(aq, 1.0 M)|Cr(s) (ii) Fea+(aq, 1.0M)|Fe(s) (iii) Cu2+(aq, 1.0M)|Cu(s) (iv) Mg2+(aq, 1.0M)|Mg(s) (a) In which of the voltaic cells does the hydrogen electrode serve as the cathode? (b) Which voltaic cell produces the highest potential? Which produces the lowest potential?arrow_forward
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