Chemistry: The Molecular Nature of Matter
7th Edition
ISBN: 9781118516461
Author: Neil D. Jespersen, Alison Hyslop
Publisher: WILEY
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Chapter 19, Problem 25PE
What current must be supplied to deposit 0.0500 g of gold from a solution of
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Chapter 19 Solutions
Chemistry: The Molecular Nature of Matter
Ch. 19 - Sketch and label a galvanic cell that makes use of...Ch. 19 - Write the anode and cathode half-reactions for the...Ch. 19 - Copper metal and zinc metal will both reduce Ag+...Ch. 19 - A galvanic cell has a standard cell potential of...Ch. 19 - Using the positions of the respective...Ch. 19 - Use the positions of the half-reactions in Table...Ch. 19 - What are the overall cell reaction and the...Ch. 19 - What are the overall cell reaction and the...Ch. 19 - A 1.0 M solution of copper(II) perchlorate and 1.0...Ch. 19 - A galvanic cell is constructed with two platinum...
Ch. 19 - Prob. 11PECh. 19 - Under standard state conditions, which of the...Ch. 19 - A certain reaction has an Ecello of 0.107 volts...Ch. 19 - Calculate G for the reactions that take place in...Ch. 19 - The calculated standard cell potential for the...Ch. 19 - Use the following half-reactions and the data in...Ch. 19 - A galvanic cell is constructed with a copper...Ch. 19 - In Example 19.9, assume all conditions are the...Ch. 19 - In the analysis of two other water samples by the...Ch. 19 - A galvanic cell is constructed with a copper...Ch. 19 - In the electrolysis of an aqueous solution...Ch. 19 - In the electrolysis of an aqueous solution...Ch. 19 - How many moles of hydroxide ion will be produced...Ch. 19 - How many minutes will it take for a current of...Ch. 19 - What current must be supplied to deposit 0.0500 g...Ch. 19 - Suppose the solutions in the galvanic cell...Ch. 19 - Galvanic Cells What is a galvanic cell? What is a...Ch. 19 - Galvanic Cells
19.2 What is the function of a salt...Ch. 19 - Galvanic Cells In a coppersilver cell, why must...Ch. 19 - Galvanic Cells What is the general name we give to...Ch. 19 - Galvanic Cells In a galvanic cell, do electrons...Ch. 19 - Galvanic Cells Explain how the movement of the...Ch. 19 - Galvanic Cells
19.7 Aluminum will displace tin...Ch. 19 - Galvanic Cells
19.8 Make a sketch of the galvanic...Ch. 19 - Galvanic Cells 19.9 Make a sketch of a galvanic...Ch. 19 - Galvanic Cells Make a sketch of a galvanic cell...Ch. 19 - Prob. 11RQCh. 19 - Cell Potentials How are standard reduction...Ch. 19 - If you set up a galvanic cell using metals not...Ch. 19 - Cell Potentials Galvanic cells are set up so that...Ch. 19 - Utilizing Standard Reduction Potentials Describe...Ch. 19 - Utilizing Standard Reduction Potentials What do...Ch. 19 - Prob. 17RQCh. 19 - Utilizing Standard Reduction Potentials Describe...Ch. 19 - Prob. 19RQCh. 19 - Prob. 20RQCh. 19 -
19.21 What is the equation that relates the...Ch. 19 - EcelloandG Show how the equation that relates the...Ch. 19 - Ecello and G What is the cell potential of a...Ch. 19 - Cell Potentials and Concentration 19.24 The cell...Ch. 19 - Cell Potentials and Concentration What is a...Ch. 19 - Cell Potentials and Concentration Describe what...Ch. 19 - Electricity What are the anode and cathode...Ch. 19 - Prob. 28RQCh. 19 - Electricity
19.29 How is a hydrometer constructed?...Ch. 19 - lectricity What reactions occur at the electrodes...Ch. 19 - Electricity
19.31 What chemical reactions take...Ch. 19 - Prob. 32RQCh. 19 - Electricity
19.33 What are the anode, cathode, and...Ch. 19 - Electricity Give two reasons why lithium is such...Ch. 19 - Electricity What are the electrode materials in a...Ch. 19 - Electricity
19.36 What are the electrode materials...Ch. 19 - Prob. 37RQCh. 19 - Electricity Write the cathode, anode, and net cell...Ch. 19 - Electricity What advantages do fuel cells offer...Ch. 19 - Electrolytic Cells What electrical charges do the...Ch. 19 - Electrolytic Cells
19.41 Why must electrolysis...Ch. 19 - Electrolytic Cells Why must NaCl be melted before...Ch. 19 - Electrolytic Cells Write half-reactions for the...Ch. 19 - Electrolytic Cells
19.44 What happens to the pH of...Ch. 19 - Electrolysis Stoichiometry
19.45 What is a...Ch. 19 - Electrolysis Stoichiometry
19.46 Using the same...Ch. 19 - Electrolysis Stoichiometry
19.47 An electric...Ch. 19 - Electrolysis Stoichiometry
19.48 An electric...Ch. 19 - Practical Applications of Electrolysis What is...Ch. 19 - Practical Applications of Electrolysis
19.50...Ch. 19 - Practical Applications of Electrolysis In the...Ch. 19 - Prob. 52RQCh. 19 - Practical Applications of Electrolysis Describe...Ch. 19 - Prob. 54RQCh. 19 - Galvanic Cells Write the half-reactions and the...Ch. 19 - Galvanic Cells Write the half-react ions and the...Ch. 19 - Write the cell notation for the following galvanic...Ch. 19 - Write the cell notation for the following galvanic...Ch. 19 - For each pair of substances, use Table 19.l to...Ch. 19 - 19.60 For each pair of substances, use Table 19.1...Ch. 19 - Use the data in Table 19.1 to calculate the...Ch. 19 - 19.62 Use the data in Table 19.1 to calculate the...Ch. 19 - From the positions of the half-reactions in Table...Ch. 19 - Use the data in Table 19.1 to determine which of...Ch. 19 - 19.65 From the half-reactions below, determine the...Ch. 19 - 19.66 What is the standard cell potential and the...Ch. 19 - What will be the spontaneous reaction among...Ch. 19 - What will be the spontaneous reaction among...Ch. 19 - Will the following reaction occur spontaneously...Ch. 19 - Determine whether the reaction:...Ch. 19 -
19.71 Calculate for the following reaction as...Ch. 19 - EcellandG Calculate G for the reaction...Ch. 19 - Given the following half-reactions and their...Ch. 19 - Calculate Kc for the system Ni2++CoNi+Co2+ Use the...Ch. 19 - 19.75 The system
has a calculated What is the...Ch. 19 - Determine the value of Kc at 25C for the reaction...Ch. 19 - Cell Potentials and Concentrations 19.77 The cell...Ch. 19 - Cell Potentials and Concentrations
19.78 The for...Ch. 19 - *19.79 A cell was set up having the following...Ch. 19 - A silver wire coated with AgCl is sensitive to the...Ch. 19 - At 25C, a galvanic cell was set up having the...Ch. 19 - *19.82 Suppose a galvanic cell was constructed at ...Ch. 19 - *19.83 What is the potential of a concentration...Ch. 19 - *19.84 What is the potential of a concentration...Ch. 19 - Prob. 85RQCh. 19 - Prob. 86RQCh. 19 - What products would we expect at the electrodes if...Ch. 19 - What products would we expect at the electrodes if...Ch. 19 - Using Table 19.1, list the ions in aqueous...Ch. 19 - Prob. 90RQCh. 19 - Electrolysis Stoichiometry
19.91 How many moles of...Ch. 19 - Electrolysis Stoichiometry
19.92 How many moles of...Ch. 19 - 19.93 How many grams of Fe(OH)2 are produced at an...Ch. 19 - 19.94 How many grams of would be produced in the...Ch. 19 - Prob. 95RQCh. 19 - 19.96 How many hours would it take to generate...Ch. 19 - 19.97 How many amperes would be needed to produce...Ch. 19 - 19.98 A large electrolysis cell that produces...Ch. 19 - *19.99 The electrolysis of 250 mL of a brine...Ch. 19 - *19.100 A 100.0 mL sample of 2.00MNaCl was...Ch. 19 - *19.101 A watt is a unit of electrical power and...Ch. 19 - Suppose that a galvanic cell were set up having...Ch. 19 - Prob. 103RQCh. 19 - *19.104 The value of for AgBr is . What will be...Ch. 19 - 19.105 Based only on the half-reactions in Table...Ch. 19 - A student set up an electrolysis apparatus and...Ch. 19 - *19.107 A hydrogen electrode is immersed in a 0.10...Ch. 19 - *19.108 What current would be required to deposit ...Ch. 19 - *19.109 A solution containing vanadium in an...Ch. 19 - Consider the reduction potentials of the following...Ch. 19 - An Ag/AgCl electrode dipping into 1.00MHCl has a...Ch. 19 - Prob. 112RQCh. 19 - Consider the following galvanic cell:...Ch. 19 - The electrolysis of 0.250 L of a brine solution...Ch. 19 - A solution of NaCl in water was electrolyzed with...Ch. 19 - How many milliliters of dry gaseous H2, measured...Ch. 19 - *19.117 At , a galvanic cell was set up having the...Ch. 19 - Given the following reduction half-reactions and...Ch. 19 - The normal range of chloride ions in blood serum...Ch. 19 - An unstirred solution of 2.00 M NaCl was...Ch. 19 - What masses of and O2 in grams would have to react...Ch. 19 - *19.122 Draw an atomic-level diagram of the events...Ch. 19 - *19.123 In biochemical systems, the normal...Ch. 19 - Calculate a new version of Table 19.1 using the...Ch. 19 - In Problem 19.83, the potential at 75C was...Ch. 19 - There are a variety of methods available for...Ch. 19 - *19.128 Most flashlights use two or more batteries...Ch. 19 - 19.129 If two electrolytic cells are placed in...Ch. 19 - Prob. 130RQCh. 19 - Prob. 131RQ
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- 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_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_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_forward
- What is the standard cell potential you would obtain from a cell at 25C using an electrode in which Hg22+(aq) is in contact with mercury metal and an electrode in which an aluminum strip dips into a solution of Al3+(aq)?arrow_forwardCalculate the standard cell potential of the cell corresponding to the oxidation of oxalic acid, H2C2O4, by permanganate ion. MnO4. 5H2C2O4(aq)+2MnO4(aq)+6H+(aq)10CO2(g)+2Mn2+(aq)+8H2O(l) See Appendix C for free energies of formation: Gf for H2C2O4(aq) is 698 kJ.arrow_forwardAn electrode is prepared from liquid mercury in contact with a saturated solution of mercury(I) chloride, Hg2Cl, containing 1.00 M Cl . The cell potential of the voltaic cell constructed by connecting this electrode as the cathode to the standard hydrogen half-cell as the anode is 0.268 V. What is the solubility product of mercury(I) chloride?arrow_forward
- Calculate the cell potential of a cell operating with the following reaction at 25C, in which [MnO4] = 0.010 M, [Br] = 0.010 M. [Mn2] = 0.15 M, and [H] = 1.0 M. 2MNO4(aq)+10Br(aq)+16H+(aq)2MN2(aq)+5Br2(l)+8H2O(l)arrow_forwardWhat is the standard cell potential you would obtain from a cell at 25C using an electrode in which I(aq) is in contact with I2(s) and an electrode in which a chromium strip dips into a solution of Cr3(aq)?arrow_forwardA 1.0-L sample of 1.0 M HCl solution has a 10.0 A current applied for 45 minutes. What is the pH of the solution after the electricity has been turned off?arrow_forward
- Consider a galvanic cell based on the following half-reactions: a. What is the standard potential for this cell? b. A nonstandard cell is set up at 25C with [Mg2+] = 1.00 105 M. The cell potential is observed to be 4.01 V. Calculate [Au3+] in this cell.arrow_forwardConsider the following cell running under standard conditions: Fe(s)Fe2+(aq)Al3+(aq)Al(s) a Is this a voltaic cell? b Which species is being reduced during the chemical reaction? c Which species is the oxidizing agent? d What happens to the concentration of Fe3+(aq) as the reaction proceeds? e How does the mass of Al(s) change as the reaction proceeds?arrow_forwardA lead storage battery delivers a current of 6.00 A for one hour and 22 minutes at a voltage of 12.0 V. (a) How many grams of lead are converted to PbSO4? (b) How much electrical energy is produced in kilowatt hours?arrow_forward
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