Use measured cell potential to calculate concentration. When [Ag] 1.18 M, the observed cell potential at 298K for an electrochemical cell with the reaction shown below is 3.283 V. What is the Mg2+ concentration in this cell? 2Ag (aq) + Mg(s)-2Ag(s) + Mg2+(aq) [Mg2+] = 1.84x10^-4 M Calculate quantity of materials produced from the electrolysis of a molten salt. Close Problem A current of 17.3A is passed through an electrolysis cell containing molten MgCl2 for 37.2 minutes. (a) Predict the products of the electrolysis and write the reactions occurring at the anode and cathode. Write electrons as e. Use smallest integer coefficients possible and omit states. If a box is not needed, leave it blank. Cathode reaction: Mg 2+ + 2e" Mg Anode reaction: 2C1- + Cl₂ + 2e (b) Calculate the grams of metal or liters of gas formed at the cathode and anode (assume gases are at 298 K and 1.00 atm). Formed at cathode: 9.75 grams Formed at anode: 0.201 liters

Use measured cell potential to calculate concentration. When [Ag] 1.18 M, the observed cell potential at 298K for an electrochemical cell with the reaction shown below is 3.283 V. What is the Mg2+ concentration in this cell? 2Ag (aq) + Mg(s)-2Ag(s) + Mg2+(aq) [Mg2+] = 1.84x10^-4 M Calculate quantity of materials produced from the electrolysis of a molten salt. Close Problem A current of 17.3A is passed through an electrolysis cell containing molten MgCl2 for 37.2 minutes. (a) Predict the products of the electrolysis and write the reactions occurring at the anode and cathode. Write electrons as e. Use smallest integer coefficients possible and omit states. If a box is not needed, leave it blank. Cathode reaction: Mg 2+ + 2e" Mg Anode reaction: 2C1- + Cl₂ + 2e (b) Calculate the grams of metal or liters of gas formed at the cathode and anode (assume gases are at 298 K and 1.00 atm). Formed at cathode: 9.75 grams Formed at anode: 0.201 liters

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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