Chemistry Homework Help

Browse Homework Solutions

57 solutions

Faraday's Constant

Q. Suppose a current of 82 A is fed into a car battery for 11.0 seconds. Calculate the mass of lead deposited on the cathode of the battery.

Solved • Oct 10, 2019

Faraday's Constant

Q. Calcium is obtained industrially by electrolysis of molten CaCl2 and is used in aluminum alloys. How many coulombs are needed to produce 10.6 g of Ca metal? If a cell runs at 15 A, How many minutes will it take to produce 10.6 g of Ca(s)?

Solved • Sep 30, 2019

Faraday's Constant

Q. Electrolysis of molten NaCl in a Downs cell is the major isolation step in the production of sodium metal. Assuming that 209 g of Na metal forms, answer the following questions. (c) How many amps will produce this amount in 9.50 h?

Solved • Sep 30, 2019

Faraday's Constant

Q. Electrolysis of molten NaCl in a Downs cell is the major isolation step in the production of sodium metal. Assuming that 209 g of Na metal forms, answer the following questions. (b) How many coulombs are required.?

Solved • Sep 30, 2019

Faraday's Constant

Q. For what length of time must a 20.0 A current flow to deposit 4.01 g of Ca from molten CaCl2? F = 96500 C/mol

Solved • Aug 12, 2019

Faraday's Constant

Q. For what length of time (in seconds) must a 10.0 A current flow to deposit 45.5 g of Mg from molten MgCl2? Molar mass of Mg is 24.3 g. F = 96500 C/mol

Solved • Aug 9, 2019

Faraday's Constant

Q. Calculate the number of grams of aluminum produced in 1.00 hour by the electrolysis of molten AlCl3 if the electrical current is 10.0 A.

Solved • Aug 8, 2019