Chemistry: Principles and Practice
3rd Edition
ISBN: 9780534420123
Author: Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher: Cengage Learning
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Textbook Question
Chapter 18, Problem 18.80QE
The commercial production of magnesium is accomplished by
- (a) Why is electrolysis of an aqueous solution of MgCl2 not used in this process?
- (b) Write the anode and cathode half-reaction in the electrolysis of molten MgCl2.
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Magnesium is obtained by electrolysis of molten MgCl2. (a) Why is an aqueous solution of MgCl2 not used in the electrolysis?
(a) The half-reaction for formation of magnesium metal upon electrolysis molten MgCl2 is Mg2+ + 2e- Mg. Calculate the mass of magnesium formed upon passage of a current of 60.0 A for a period of 4.00 x 103 s. (b) How many seconds would be required to produce 50.0 g of Mg from MgCl2 if the current is 100.0 A?
A 0.100 M neutral aqueous CaCl2 solution is electrolyzed using platinum electrodes. A current of 1.50 A passes through the solution for 50.0 hours.(a) Write the half-reactions occurring at the anode and at the cathode.(b) What is the decomposition potential?(c) Calculate the mass, in grams, of the product formed at the cathode.
Chapter 18 Solutions
Chemistry: Principles and Practice
Ch. 18 - Prob. 18.1QECh. 18 - List the halogens in order of increasing oxidizing...Ch. 18 - Prob. 18.3QECh. 18 - Prob. 18.4QECh. 18 - Prob. 18.5QECh. 18 - Prob. 18.6QECh. 18 - Prob. 18.7QECh. 18 - Prob. 18.8QECh. 18 - Prob. 18.9QECh. 18 - Prob. 18.10QE
Ch. 18 - Assign the oxidation numbers of all atoms in the...Ch. 18 - Prob. 18.12QECh. 18 - Prob. 18.13QECh. 18 - Assign the oxidation numbers of all atoms in the...Ch. 18 - Prob. 18.15QECh. 18 - Prob. 18.16QECh. 18 - Prob. 18.17QECh. 18 - Prob. 18.18QECh. 18 - Prob. 18.19QECh. 18 - Prob. 18.20QECh. 18 - Prob. 18.21QECh. 18 - Prob. 18.22QECh. 18 - Prob. 18.23QECh. 18 - Prob. 18.24QECh. 18 - Complete and balance each half-reaction in acid...Ch. 18 - Prob. 18.26QECh. 18 - Prob. 18.27QECh. 18 - Prob. 18.28QECh. 18 - Prob. 18.29QECh. 18 - Balance each of the following redox reactions in...Ch. 18 - Prob. 18.31QECh. 18 - Prob. 18.32QECh. 18 - Prob. 18.33QECh. 18 - Prob. 18.34QECh. 18 - Prob. 18.35QECh. 18 - Prob. 18.36QECh. 18 - Prob. 18.37QECh. 18 - Prob. 18.38QECh. 18 - Prob. 18.39QECh. 18 - A voltaic cell is based on the reaction...Ch. 18 - For each of the reactions, calculate E from the...Ch. 18 - For each of the reactions, calculate E from the...Ch. 18 - Use the data from the table of standard reduction...Ch. 18 - Prob. 18.46QECh. 18 - Prob. 18.47QECh. 18 - The standard potential of the cell reaction...Ch. 18 - A half-cell that consists of a copper wire in a...Ch. 18 - Prob. 18.50QECh. 18 - Prob. 18.51QECh. 18 - Prob. 18.52QECh. 18 - Use the standard reduction potentials in Table...Ch. 18 - Use the standard reduction potentials in Table...Ch. 18 - Prob. 18.55QECh. 18 - Prob. 18.56QECh. 18 - Prob. 18.57QECh. 18 - Prob. 18.58QECh. 18 - Prob. 18.59QECh. 18 - Prob. 18.60QECh. 18 - Calculate the potential for each of the voltaic...Ch. 18 - Prob. 18.62QECh. 18 - Prob. 18.63QECh. 18 - Prob. 18.64QECh. 18 - Prob. 18.65QECh. 18 - Prob. 18.66QECh. 18 - Prob. 18.67QECh. 18 - Prob. 18.68QECh. 18 - What is the voltage of a concentration cell of...Ch. 18 - What is the voltage of a concentration cell of Cl...Ch. 18 - Prob. 18.71QECh. 18 - Prob. 18.72QECh. 18 - Prob. 18.73QECh. 18 - Prob. 18.74QECh. 18 - Prob. 18.75QECh. 18 - Prob. 18.76QECh. 18 - A solution contains the ions H+, Ag+, Pb2+, and...Ch. 18 - Prob. 18.78QECh. 18 - Prob. 18.79QECh. 18 - The commercial production of magnesium is...Ch. 18 - Prob. 18.81QECh. 18 - Prob. 18.82QECh. 18 - Find the mass of hydrogen produced by electrolysis...Ch. 18 - Prob. 18.84QECh. 18 - Prob. 18.85QECh. 18 - How long would it take to electroplate a metal...Ch. 18 - Prob. 18.87QECh. 18 - Prob. 18.88QECh. 18 - Prob. 18.89QECh. 18 - Prob. 18.90QECh. 18 - Prob. 18.91QECh. 18 - Prob. 18.92QECh. 18 - Prob. 18.93QECh. 18 - Use the standard reduction potentials in Appendix...Ch. 18 - Prob. 18.95QECh. 18 - Prob. 18.96QECh. 18 - Prob. 18.97QECh. 18 - Prob. 18.98QECh. 18 - Another type of battery is the alkaline...Ch. 18 - At 298 K, the solubility product constant for...Ch. 18 - At 298 K, the solubility product constant for...Ch. 18 - Prob. 18.103QECh. 18 - Prob. 18.104QECh. 18 - An electrolytic cell produces aluminum from Al2O3...Ch. 18 - Prob. 18.106QECh. 18 - Prob. 18.107QECh. 18 - At 298 K, the solubility product constant for...Ch. 18 - Prob. 18.109QE
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