Chemistry by OpenStax (2015-05-04) 1st Edition
ISBN: 9781938168390
Author: Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher: Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
1 Essential Ideas 2 Atoms, Molecules, And Ions 3 Composition Of Substances And Solutions 4 Stoichiometry Of Chemical Reactions 5 Thermochemistry 6 Electronic Structure And Periodic Properties Of Elements 7 Chemical Bonding And Molecular Geometry 8 Advanced Theories Of Covalent Bonding 9 Gases 10 Liquids And Solids 11 Solutions And Colloids 12 Kinetics 13 Fundamental Equilibrium Concepts 14 Acid-base Equilibria 15 Equilibria Of Other Reaction Classes 16 Thermodynamics 17 Electrochemistry 18 Representative Metals, Metalloids, And Nonmetals 19 Transition Metals And Coordination Chemistry 20 Organic Chemistry 21 Nuclear Chemistry Chapter17: Electrochemistry
Chapter Questions Section: Chapter Questions
Problem 1E: If a 2.5 A current is run through a circuit for 35 minutes, how many coulombs of charge moved... Problem 2E: For the scenario in the previous question, how many electrons moved through the circuit? Problem 3E: For each of the following balanced half-reactions, determine whether an oxidation or reduction is... Problem 4E: For each of the following balanced half-reactions, determine whether an oxidation or reduction is... Problem 5E: Given the following pairs of balanced half-reactions, determine the balanced reaction for each pair... Problem 6E: Balance the following in acidic solution: (a) H2O2+Sn2+H2O+Sn4+ (b) PbO2+HgHg22++Pb2+ (c)... Problem 7E: Identify the species that undergoes oxidation, the species that undergoes reduction, the oxidizing... Problem 8E: Balance the following in acidic solution: (a) SO32(aq)+Cu(OH)2(s)SO42(aq)+Cu(OH)(s) (b)... Problem 9E: Identify the species that was oxidized, the species that was reduced, the oxidizing agent, and the... Problem 10E: Why is it not possible for hydroxide ion (OH-) to appear in either of the half-reactions or the... Problem 11E: Why is it not possible for hydrogen ion (H+) to appear in either of the half-reactions or the... Problem 12E: Why must the charge balance in oxidation-reduction reactions? Problem 13E: Write the following balanced reactions using cell notation. Use platinum as an inert electrode, if... Problem 14E: Given the following cell notations, determine the species oxidized, species reduced, and the... Problem 15E: For the cell notations in the previous problem, write the corresponding balanced reactions. Problem 16E: Balance the following reactions and write the reactions using cell notation. Ignore any inert... Problem 17E: Identify the species oxidized species reduced, and the oxidizing agent and reducing agent for all... Problem 18E: From the information provided, use cell notation to describe the following systems: (a) In one... Problem 19E: Why is a salt bridge necessary in galvanic cells like the one in Figure 17.4? Problem 20E: An active (metal) electrode was found to gain mass as the oxidation-reduction reaction was allowed... Problem 21E: An active (metal) electrode was found to lose mass as the oxidation-reduction reaction was allowed... Problem 22E: The mass of three different metal electrodes, each from a different galvanic cell, were determined... Problem 23E: For each reaction listed, determine its standard cell potential at 25 C and whether the reaction is... Problem 24E: For each reaction listed, determine its standard cell potential at 25 C and whether the reaction is... Problem 25E: Determine the overall reaction and its standard cell potential at 25 C for this reaction. Is the... Problem 26E: Determine the overall reaction and its standard cell potential at 25 C for the reaction involving... Problem 27E: Determine the overall reaction and its standard cell potential at 25 C for the reaction involving... Problem 28E: Determine the overall reaction and its standard cell potential at 25 C for these reactions. Is the... Problem 29E: For the standard cell potentials given here, determine the ?G for the cell in k].. (a) 0.000V,n=2... Problem 30E: For the ?G values given here, determine the standard cell potential for the cell.. (a) 12kJ/mol,n=3... Problem 31E: Determine the standard cell potential and the cell potential under the stated conditions for the... Problem 32E: Determine G and G for each of the reactions in the previous problem. Problem 33E: Use the data in Appendix L to determine the equilibrium constant for the following reactions. Assume... Problem 34E: What are the desirable qualities of an electric battery? Problem 35E: List some things that are typically considered when selecting a battery for a new application. Problem 36E: Consider a battery made from one half-cell that consists of a capper electrode in 1 M CuSO4 solution... Problem 37E: Consider a battery with the overall reaction: Cu(s)+2Ag+(aq)2Ag(s)+Cu2+(aq). (a) What is the... Problem 38E: An inventor proposes using a SHE (standard hydrogen electrode) in a new battery for smartphones that... Problem 39E: Why do batteries go dead, but fuel cells do not? Problem 40E: Explain what happens to battery voltage as a battery is used, in terms of the Nernst equation. Problem 41E: Using the information thus far in this chapter, explain why battery-powered electronics perform... Problem 42E: Which member of each pair of metals is more likely to corrode (oxidize)? (a) Mg or Ca (b) Au or Hg... Problem 43E: Consider the following metals: Ag, Au, Mg, Ni, and Zn. Which of these metals could be used as a... Problem 44E: Aluminum (E Al 3+/Al=2.07V) is more easily oxidized than iron (E Fe 3+/Fe=2.07V), and yet when both... Problem 45E: If a sample of iron and a sample of zinc come into contact, the zinc corrodes but the iron does not.... Problem 46E: Suppose you have three different metals. A, B, and C. When metals A and B come into contact. B... Problem 47E: Why would a sacrificial anode made of lithium metal be a bad choice despite its ELi+/Li=2.07V, which... Problem 48E: Identify the reaction at the anode, reaction at the cathode, the overall reaction, and the... Problem 49E: What mass of each product is produced in each of the electrolytic cells of the previous problem if a... Problem 50E: How long would it take to reduce 1 mole of each of the following ions using the current indicated?... Problem 51E: A current of 2.345 A passes through the cell shown in Figure 17.20 for 45 minutes. What is the... Problem 52E: An irregularly shaped metal part made from a particular alloy was galvanized with zinc using a... Problem 24E: For each reaction listed, determine its standard cell potential at 25 C and whether the reaction is...
Related questions
In an electrochemical cell, Q = 4560 and K = 345. What can you conclude about Ecell and E°cell?
Ecell is positive and E°cell is positive
Ecell is positive and E°cell is negative
Ecell is negative and E°cell is positive
Ecell is negative and E°cell is negative
Definition Definition Study of chemical reactions that result in the production of electrical energy. Electrochemistry focuses particularly on how chemical energy is converted into electrical energy and vice-versa. This energy is used in various kinds of cells, batteries, and appliances. Most electrochemical reactions involve oxidation and reduction.
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