Chemistry: Principles and Reactions
8th Edition
ISBN: 9781305079373
Author: William L. Masterton, Cecile N. Hurley
Publisher: Cengage Learning
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Textbook Question
Chapter 17, Problem 87QAP
Hydrogen gas is produced when water is electrolyzed.
A balloonist wants to fill a balloon with hydrogen gas. How long must a current of 12.0 A be used in the
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Chapter 17 Solutions
Chemistry: Principles and Reactions
Ch. 17 - Balance the following half-equations. Balance (a)...Ch. 17 - Balance the following half-equations. Balance (a)...Ch. 17 - Prob. 3QAPCh. 17 - Balance the following reactions in acid: (a)...Ch. 17 - Write balanced equations for the following...Ch. 17 - Write balanced equations for the following...Ch. 17 - Prob. 7QAPCh. 17 - Write balanced net ionic equations for the...Ch. 17 - Write balanced net ionic equations for the...Ch. 17 - Prob. 10QAP
Ch. 17 - Write a balanced chemical equation for the overall...Ch. 17 - Write a balanced net ionic equation for the...Ch. 17 - Draw a diagram for a salt bridge cell for each of...Ch. 17 - Follow the directions in Question 13 for the...Ch. 17 - Consider a voltaic salt bridge cell represented by...Ch. 17 - Consider a salt bridge voltaic cell represented by...Ch. 17 - Consider a salt bridge cell in which the anode is...Ch. 17 - Follow the directions in Question 17 for a salt...Ch. 17 - Prob. 19QAPCh. 17 - Which species in each pair is the stronger...Ch. 17 - Using Table 17.1, arrange the following reducing...Ch. 17 - Use Table 17.1 to arrange the following oxidizing...Ch. 17 - Consider the following species. Cr3+ Hg(l) H2...Ch. 17 - Follow the directions of Question 23 for the...Ch. 17 - For the following half-reactions, answer these...Ch. 17 - For the following half-reactions, answer the...Ch. 17 - Use Table 17.1 to select (a) a reducing agent in...Ch. 17 - Use Table 17.1 to select (a) an oxidizing agent in...Ch. 17 - Calculate E° for the following voltaic cells: (a)...Ch. 17 - Calculate E° for the following voltaic cells: (a)...Ch. 17 - Using Table 17.1, calculate E° for the reaction...Ch. 17 - Using Table 17.1, calculate E° for the reaction...Ch. 17 - Calculate E° for the following cells: (a)...Ch. 17 - Calculate E° for the following cells: (a)...Ch. 17 - Suppose Ered for Ag+Ag were set equal to zero...Ch. 17 - Suppose Ered for H+H2 were taken to be 0.300 V...Ch. 17 - Which of the following reactions is/are...Ch. 17 - Which of the following reactions is(are)...Ch. 17 - Use the following half-equations to write three...Ch. 17 - Follow the directions of Question 39 for the...Ch. 17 - Use Table 17.1 to answer the following questions:...Ch. 17 - Use Table 17.1 to answer the following questions....Ch. 17 - Write the equation for the reaction, if any, that...Ch. 17 - Write the equation for the reaction, if any, that...Ch. 17 - Prob. 45QAPCh. 17 - Prob. 46QAPCh. 17 - Use Table 17.1 to predict what reaction, if any,...Ch. 17 - Use Table 17.1 to predict what reaction, if any,...Ch. 17 - Consider a cell reaction at 25°C where n=2 . Fill...Ch. 17 - Consider a cell reaction at 25°C where n=4 . Fill...Ch. 17 - For a certain cell, G=25.0 kJ. Calculate E° if n...Ch. 17 - For a certain cell, E=1.08 V. Calculate G° if n is...Ch. 17 - Calculate E°, G°, and K at 25°C for the reaction...Ch. 17 - Calculate E°, G°, and K at 25°C for the reaction...Ch. 17 - Calculate G° at 25°C for each of the reactions...Ch. 17 - Calculate G° at 25°C for each of the reactions...Ch. 17 - Calculate K at 25°C for each of the reactions...Ch. 17 - Calculate K at 25°C for each of the reactions...Ch. 17 - Prob. 59QAPCh. 17 - Use Table 17.1 to find Kffor AuCl4- (aq) at 25°C.Ch. 17 - Prob. 61QAPCh. 17 - What is E° at 25°C for the following reaction?...Ch. 17 - Consider a voltaic cell at 25°C in which the...Ch. 17 - Consider a voltaic cell at 25°C in which the...Ch. 17 - Consider a voltaic cell in which the following...Ch. 17 - Consider a voltaic cell in which the following...Ch. 17 - Calculate the voltages of the following cells at...Ch. 17 - Calculate the voltages of the following cells at...Ch. 17 - Consider the reaction...Ch. 17 - Consider the reaction at 25°C:...Ch. 17 - Complete the following cell notation....Ch. 17 - Complete the following cell notation....Ch. 17 - Consider the reaction below at 25°C:...Ch. 17 - Consider the reaction low at 25°C:...Ch. 17 - Consider a cell in which the reaction is...Ch. 17 - Consider a cell in which the reaction is...Ch. 17 - An electrolytic cell produces aluminum from Al2O3...Ch. 17 - Prob. 78QAPCh. 17 - A solution containing a metal ion (M2+(aq)) is...Ch. 17 - A solution containing a metal ion (M2+(aq)) is...Ch. 17 - A baby's spoon with an area of 6.25 cm2 is plated...Ch. 17 - A metallurgist wants to gold-plate an object with...Ch. 17 - A lead storage battery delivers a current of 6.00...Ch. 17 - Calcium metal can be obtained by the direct...Ch. 17 - Given the following data:...Ch. 17 - In a nickel-cadmium battery (Nicad), cadmium is...Ch. 17 - Hydrogen gas is produced when water is...Ch. 17 - Consider the electrolysis of NiCl2 to Ni(s) and...Ch. 17 - An electrolysis experiment is performed to...Ch. 17 - Prob. 90QAPCh. 17 - Prob. 91QAPCh. 17 - Prob. 92QAPCh. 17 - Atomic masses can be determined by electrolysis....Ch. 17 - Consider the following reaction at 25°C:...Ch. 17 - Given the standard reduction potential for...Ch. 17 - Choose the figure that best represents the results...Ch. 17 - For the cell: Cr|Cr3+Co2+|Co E° is 0.46 V. The...Ch. 17 - Which of the changes below will increase the...Ch. 17 - The standard potential for the reduction of AgSCN...Ch. 17 - Consider the following standard reduction...Ch. 17 - Use Table 17.1 to answer the following questions....Ch. 17 - Consider three metals, X, Y, and Z, and their...Ch. 17 - An alloy made up of tin and copper is prepared by...Ch. 17 - In a fully charged lead storage battery, the...Ch. 17 - Consider a voltaic cell in which the following...Ch. 17 - In biological systems, acetate ion is converted to...Ch. 17 - Consider the cell Pt|H2|H+H+|H2|Pt In the anode...Ch. 17 - Prob. 108QAPCh. 17 - Prob. 109QAP
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- Assume the following electrochemical cell simulates the galvanic cell formed by copper and zinc in seawater at pH 7.90 and 25 C. Zn | Zn(OH)2(s) | OH(aq) || Cu(OH)2(s) | Cu(s) a. Write a balanced equation for the reaction that occurs at the cathode. b. Write a balanced equation for the reaction that occurs at the anode. c. Write a balanced chemical equation for the overall reaction. d. Determine the potential (in volts) of the cell.arrow_forwardChlorine, Cl2, is produced commercially by the electrolysis of aqueous sodium chloride. The anode reaction is 2Cl(aq)Cl2(g)+2e How long will it take to produce 2.00 kg of chlorine if the current is 5.00 102 A?arrow_forwardElectrolysis of a solution of CuSO4(aq) to give copper metal is carried out using a current of 0.66 A. How long should electrolysis continue to produce 0.50 g of copper?arrow_forward
- Consider the electrolysis of water in the presence of very dilute H2SO4. What species is produced at the anode? Atthe cathode? What are the relative amounts of the speciesproduced at the two electrodes?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_forwardHydrazine, N2H4, has been proposed as the fuel in a fuel cell in which oxygen is the oxidizing agent. The reactions are N2H4(aq) + 4 OH(aq) N2(g) + 4 H2O() + 4e O2(g) + 2 H2O() + 4e 4 OH(aq) (a) Which reaction occurs at the anode and which at thecathode? (b) What is the overall cell reaction? (c) If the cell is to produce 0.50 A of current for 50.0 h, calculate what mass in grams of hydrazine must be present. (d) Calculate what mass (g) of O2 must be available to reactwith the mass of N2H4 determined in part (c).arrow_forward
- Calcium 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_forwardHow long would it take to electroplate a metal surface with 0.500 g nickel metal from a solution of Ni2+ with a current of 4.00 A?arrow_forward
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Electrolysis; Author: Tyler DeWitt;https://www.youtube.com/watch?v=dRtSjJCKkIo;License: Standard YouTube License, CC-BY