Determine the oxidation number of the chromium in an undetermined salt solution if electrolysis of a molten sample of this salt for 1.50 hours with a 10.0 A current deposit 9.71 grams of chromium metal at the cathode (use 52g/mol as molar mass of Chromium; Faraday constant = 96485 C/mol e.). Hints: (1) Get the number of moles of electrons. Note that ampere means coulombs per second (C/s). (2) Get the number of moles of Chromium deposited. (3) Get the ratio of mol e and mole Cr.
Determine the oxidation number of the chromium in an undetermined salt solution if electrolysis of a molten sample of this salt for 1.50 hours with a 10.0 A current deposit 9.71 grams of chromium metal at the cathode (use 52g/mol as molar mass of Chromium; Faraday constant = 96485 C/mol e.). Hints: (1) Get the number of moles of electrons. Note that ampere means coulombs per second (C/s). (2) Get the number of moles of Chromium deposited. (3) Get the ratio of mol e and mole Cr.
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter17: Electrochemistry
Section: Chapter Questions
Problem 89QAP: An electrolysis experiment is performed to determine the value of the Faraday constant (number of...
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