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23 Nov 2019

In the commercial preparation of aluminum, aluminum oxide,Al2O3, is electrolyzed at 1000 degrees Celsius (mineral cryolite isadded as a solvent). Assume the cathode reaction is

Al^3+(aq) +3e- --> Al(s)

How many coulombs of electricity are required to give 3.61 g ofAl?

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Tod Thiel
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7 Jan 2019

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Related questions

Aluminum metal is plated using electrolysis.
Al At wt = 26.9815386 g/mol.
Al+3(aq) + 3e- ? Alo(s) Eored = -1.660 v
a. How many Coulombs of electricity are required to electroplate453.6 g of Al?

b.What current would be required to electroplate 453.6 g ofAl
with an external voltage of 6.000 V in 18.00 hr
c.How much time would be required to electroplate 453.6 g ofAl
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9.Nickel, a common metal used in a variety of alloys, is purified via the Mond process to a very high (> 99.99%) purity. One of the steps in the Mond process involves the reaction of solid nickel with carbon monoxide to produce Ni(CO)4, as shown in the unbalanced equation below.

Ni(s) + CO(g) → Ni(CO)4(g)

How much carbon monoxide, in grams, is required to purify an impure sample containing 3.82 kg of nickel?

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Fe2O3(s) + 2 Al(s) → 2 Fe(l) + Al2O3(s)

What mass of powderized Al is required to completely react with 34.8 g Fe2O3?

11.In a reaction vessel, 18.0 g of solid chromium(III) oxide, Cr2O3, was allowed to react with excess carbon tetrachloride in the following reaction.

Cr2O3(s) + 3 CCl4(l) → 2 CrCl3(s) + 3 COCl2(aq)

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c. How many grams of aluminum oxide can be produced?

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