General Chemistry: Principles and Modern Applications (11th Edition)
11th Edition
ISBN: 9780132931281
Author: Ralph H. Petrucci, F. Geoffrey Herring, Jeffry D. Madura, Carey Bissonnette
Publisher: PEARSON
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Textbook Question
Chapter 19, Problem 81IAE
Describe a laboratory experiment that you co perform to evaluate the Faraday constant. F, and then Show how you could use this value to determine the Avogadro constant.
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General Chemistry: Principles and Modern Applications (11th Edition)
Ch. 19 - From the observations listed, estimate the value...Ch. 19 - You must estimate E for e half-cell reaction...Ch. 19 - Ecol=0.201V for the reaction...Ch. 19 - Ascorbic acid ( C6H6C6 , also commonly known as...Ch. 19 - Given that Ecol for the aluminum-air batter is...Ch. 19 - The theoretical Ecol for the methane-oxygen fuel...Ch. 19 - The following sketch is of a voltaic cell...Ch. 19 - Given these half-cell reactions and associated...Ch. 19 - Prob. 9ECh. 19 - Use standard reduction potentials to predict which...
Ch. 19 - Assume that all reactants and products are in...Ch. 19 - For the readuction half-cell reactions...Ch. 19 - Use date from Table 19.1 to predict whether, to...Ch. 19 - Prob. 14ECh. 19 - Dihromate ion (C2I72-) in acidic solution is a...Ch. 19 - Prob. 16ECh. 19 - Prob. 17ECh. 19 - Predict whether, to any significant extent. a....Ch. 19 - Write cell reactions for the electrochemical cells...Ch. 19 - Write the half-cell reactions and the balanced...Ch. 19 - Prob. 21ECh. 19 - In each of the following examples, sketch a...Ch. 19 - Use the data in Appendix D to calculate the...Ch. 19 - Write a cell diagram and call diagram the value of...Ch. 19 - Determine the values of tG for the following...Ch. 19 - Prob. 26ECh. 19 - Prob. 27ECh. 19 - Consider the voltaic cell below....Ch. 19 - Prob. 29ECh. 19 - Prob. 30ECh. 19 - Prob. 31ECh. 19 - The theoretical voltage of the aluminum-air...Ch. 19 - Prob. 33ECh. 19 - Prob. 34ECh. 19 - Prob. 35ECh. 19 - Prob. 36ECh. 19 - Prob. 37ECh. 19 - Use the Nernst equation and data from Appendix D...Ch. 19 - Prob. 39ECh. 19 - Prob. 40ECh. 19 - If [Zn2+] is maintained at 1.0 M, a. what the...Ch. 19 - Prob. 42ECh. 19 - Prob. 43ECh. 19 - Prob. 44ECh. 19 - Consider the voltaic cell Mg Mg(s)Mg2+ (satd Mg2(...Ch. 19 - Prob. 46ECh. 19 - For the voltaic cell,...Ch. 19 - For the voltaic cell,...Ch. 19 - Prob. 49ECh. 19 - Derive e balanced equation for the reaction...Ch. 19 - Prob. 51ECh. 19 - Prob. 52ECh. 19 - Prob. 53ECh. 19 - Prob. 54ECh. 19 - Prob. 55ECh. 19 - Prob. 56ECh. 19 - Prob. 57ECh. 19 - Prob. 58ECh. 19 - Refer to Figure 19-20, . end describe en words or...Ch. 19 - Prob. 60ECh. 19 - Natural gas transmission pipes are sometimes...Ch. 19 - Prob. 62ECh. 19 - How many gram of metal are deposited at the...Ch. 19 - A quantity of electric charge brings about the...Ch. 19 - Which of the blowing reactions occur spontaneously...Ch. 19 - An aqueous solution of K2SO4 , is electrolyzed by...Ch. 19 - Prob. 67ECh. 19 - Prob. 68ECh. 19 - Calculate the quantity indicated for each of the...Ch. 19 - Calculate the quantity indicated for each of the...Ch. 19 - Prob. 71ECh. 19 - Prob. 72ECh. 19 - Prob. 73ECh. 19 - A solution containing a mixture of a platinum(H)...Ch. 19 - Prob. 75IAECh. 19 - Suppose that a fully charged lead-acid battery...Ch. 19 - Prob. 77IAECh. 19 - For the half-cell reaction...Ch. 19 - Prob. 79IAECh. 19 - Prob. 80IAECh. 19 - Describe a laboratory experiment that you co...Ch. 19 - Prob. 82IAECh. 19 - Prob. 83IAECh. 19 - Prob. 84IAECh. 19 - Prob. 85IAECh. 19 - Prob. 86IAECh. 19 - Prob. 87IAECh. 19 - A common reference electrode consists of a silver...Ch. 19 - The electrodes in the following electrochemical...Ch. 19 - Prob. 90IAECh. 19 - Prob. 91IAECh. 19 - A solution is prepared by saturating 1000 mL of...Ch. 19 - Prob. 93IAECh. 19 - Prob. 94IAECh. 19 - Prob. 95IAECh. 19 - Prob. 96IAECh. 19 - Prob. 97IAECh. 19 - Prob. 98IAECh. 19 - Prob. 99IAECh. 19 - Prob. 100IAECh. 19 - Consider the following electrochemical cell:...Ch. 19 - Prob. 102FPCh. 19 - Prob. 103FPCh. 19 - Prob. 104FPCh. 19 - Prob. 105FPCh. 19 - Consider two cells involving two metals X and Y...Ch. 19 - Prob. 107FPCh. 19 - Prob. 108FPCh. 19 - Some electrochemical cells employ large biological...Ch. 19 - Prob. 110FPCh. 19 - Prob. 111SAECh. 19 - Prob. 112SAECh. 19 - Explain the important distinctions between each...Ch. 19 - Prob. 114SAECh. 19 - Prob. 115SAECh. 19 - Prob. 116SAECh. 19 - Prob. 117SAECh. 19 - The gas evolved at e anode when K2SO4(aq) is...Ch. 19 - Prob. 119SAECh. 19 - Prob. 120SAECh. 19 - Prob. 121SAECh. 19 - The following voltaic cell registers an...Ch. 19 - Prob. 123SAECh. 19 - For each of the following combination of...Ch. 19 - Prob. 125SAECh. 19 - Prob. 126SAECh. 19 - Prob. 127SAECh. 19 - Construct a concept map illustrating the...
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- The mass of three different metal electrodes, each from a different galvanic cell, were determined before and after the current generated by the oxidation-reduction reaction in each cell was allowed to flow for a few minutes. The first metal electrode, given the label A, was found to have increased in mass; the second metal electrode, given the label B, did not change in mass; and the third metal electrode, given the label C, was found to have lost mass. Make an educated guess as to which electrodes were active and which were inert electrodes, and which were anode(s) and which were the cathode(s).arrow_forwardA galvanic cell is constructed in which the overall reactionis Cr2O72(aq)+14H2O+(aq)+6I(aq)2Cr3+(aq)+3I2(s)+21H2O(l) Calculate E for this cell. At pH 0, with [Cr2O72]=1.5M and [I]=0.40M, the cell potential is found to equal 0.87 V. Calculatethe concentration of Cr3+(aq) in 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
- Determine the overall reaction and its standard cell potential at 25 C for this reaction. Is the reaction spontaneous at standard conditions? Cu(s)|Cu2+(aq)Au3+(aq)|Au(s)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_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
- Consider the following cell reaction at 25C. 2Cr(s)+3Fe2+(aq)2Cr3+(aq)+3Fe(s) Calculate the standard cell potential of this cell from the standard electrode potentials, and from this obtain G for the cell reaction. Use data in Appendix C to calculate H; note that Cr(H2O)63+(aq) equals Cr3+(aq). Use these values of H and G to obtain S for the cell reaction.arrow_forwardZinc is produced by electrolytic refining. The electrolytic process, which is similar to that for copper, can be represented by the two half-reactions Zn(impure,s)Zn2++2eZn2++2eZn(pure,s) For this process, a voltage of 3.0 V is used. How many kilowatt hours are needed to produce one metric ton of pure zinc?arrow_forwardCalcium metal can be obtained by the direct electrolysis of molten CaCl2, at a voltage of 3.2 V. (a) How many joules of electrical energy are required to obtain 12.0 1b of calcium? (b) What is the cost of the electrical energy obtained in (a) if electrical energy is sold at the rate of nine cents per kilowatt hour?arrow_forward
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