Chemistry Atoms First2e
2nd Edition
ISBN: 9781947172647
Author: OpenStax
Publisher: OpenStax College
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Chapter 16, Problem 49E
An irregularly shaped metal part made from a particular alloy was galvanized with zinc using a
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Chapter 16 Solutions
Chemistry Atoms First2e
Ch. 16 - Identify each half-reaction below as either...Ch. 16 - Identify each half-reaction below as either...Ch. 16 - Assuming each pair of half-reactions below takes...Ch. 16 - Balance the equations below assuming they occur in...Ch. 16 - Identify the oxidant and reductant of each...Ch. 16 - Balance the equations below assuming they occur in...Ch. 16 - Identify the oxidant and reductant of each...Ch. 16 - Why dont hydroxide ions appear in equations for...Ch. 16 - Why dont hydrogen ions appear in equations for...Ch. 16 - Why must the charge balance in oxidation-reduction...
Ch. 16 - Write cell schematics for the following cell...Ch. 16 - Assuming the schematics below represent galvanic...Ch. 16 - Write a balanced equation for the cell reaction of...Ch. 16 - Balance each reaction below, and write a cell...Ch. 16 - Identify the oxidant and reductant in each...Ch. 16 - From the information provided, use cell notation...Ch. 16 - Why is a salt bridge necessary in galvanic cell...Ch. 16 - An active (metal) electrode was found to gain mass...Ch. 16 - An active (metal) electrode was found to lose mass...Ch. 16 - The masses of three electrodes (A, B, and C), each...Ch. 16 - Calculate the standard cell potential for each...Ch. 16 - Calculate the standard cell potential for each...Ch. 16 - Write the balanced cell reaction for the cell...Ch. 16 - Determine the cell reaction and standard cell...Ch. 16 - Determine the cell reaction and standard cell...Ch. 16 - Write the balanced cell reaction for the cell...Ch. 16 - For each pair of standard cell potential and...Ch. 16 - For each pair of standard free energy change and...Ch. 16 - Determine the standard cell potential and the cell...Ch. 16 - Determine ∆G and ∆G for each of the reactions...Ch. 16 - Use the data in Appendix L to calculate...Ch. 16 - Consider a battery made from one half-cell that...Ch. 16 - Consider a battery with the overall reaction:...Ch. 16 - Why do batteries go dead, but fuel cells do not?Ch. 16 - Use the Nernst equation to explain the drop in...Ch. 16 - Using the information thus far in this chapter,...Ch. 16 - Which member of each pair of metals is more likely...Ch. 16 - Consider the following metals: Ag, Au, Mg, Ni, and...Ch. 16 - Aluminum (EoA13+/A1=-2.07V) is easily oxidized...Ch. 16 - If a sample of iron and a sample of zinc come into...Ch. 16 - Suppose you have three different metals. A, B, and...Ch. 16 - Why would a sacrificial anode made of lithium...Ch. 16 - If a 2.5 A current flows through a circuit for 35...Ch. 16 - For the scenario in the previous question, how...Ch. 16 - Write the half-reactions and cell reaction...Ch. 16 - What mass of each product is produced in each of...Ch. 16 - How long would it take to reduce 1 mole of each of...Ch. 16 - A Current of 2.345 A passes through the Shown in...Ch. 16 - An irregularly shaped metal part made from a...
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- An 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_forwardYou have 1.0 M solutions of Al(NO3)3 and AgNO3 along with Al and Ag electrodes to construct a voltaic cell. The salt bridge contains a saturated solution of KCl. Complete the picture associated with this problem by a writing the symbols of the elements and ions in the appropriate areas (both solutions and electrodes). b identifying the anode and cathode. c indicating the direction of electron flow through the external circuit. d indicating the cell potential (assume standard conditions, with no current flowing). e writing the appropriate half-reaction under each of the containers. f indicating the direction of ion flow in the salt bridge. g identifying the species undergoing oxidation and reduction. h writing the balanced overall reaction for the cell.arrow_forwardAn aqueous solution of an unknown salt of gold is electrolyzed by a current of 2.75 amps for 3.39 hours. The electroplating is carried out with an efficiency of 93.0%, resulting in a deposit of 21.221 g of gold. a How many faradays are required to deposit the gold? b What is the charge on the gold ions (based on your calculations)?arrow_forward
- Consider a galvanic cell based on the following half-reactions: a. What is the expected cell potential with all components in their standard states? b. What is the oxidizing agent in the overall cell reaction? c. What substances make up the anode compartment? d. In the standard cell, in which direction do the electrons flow? e. How many electrons are transferred per unit of cell reaction? f. If this cell is set up at 25C with [Fe2+] = 2.00 104 M and [La3+] = 3.00 103 M, what is the expected cell potential?arrow_forwardA half-cell that consists of a copper wire in a 1.00 M Cu(NO3)2 solution is connected by a salt bridge to a solution that is 1.00 M in both Pu3+ and Pu4+, and contains an inert metal electrode. The voltage of the cell is 0.642 V, with the copper as the negative electrode. (a) Write the half-reactions and the overall equation for the spontaneous chemical reaction. (b) Use the standard potential of the copper half-reaction, with the voltage of the cell, to calculate the standard reduction potential for the plutonium half-reaction.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_forward
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Electrolysis; Author: Tyler DeWitt;https://www.youtube.com/watch?v=dRtSjJCKkIo;License: Standard YouTube License, CC-BY