Homework Help: Chemistry

Posted by Mango on Sunday, April 3, 2011 at 5:19pm.

If 2.00 liters of 0.580 M CuSO4 solution is electrolyzed by passing 1.70 amps through the solution for 2.00 hr using inert electrodes.

What is the [Cu2+] in the solution at the end of the electrolysis?

Chemistry - DrBob222, Sunday, April 3, 2011 at 5:31pm
Coulombs = A x sec = 1.70 x 2 x 60 x 60 = ??
One equivalent weight will be deposited by passing 96,495 coulombs. ONe equivalent weight = 63.54 g/2 = 31.8 but you need to do that more accurately.
Then
31.8 x #coulombs/96,485 = g Cu deposited.
g Cu initially = 2L x 0.580M x 63.54 = ??
g Cu deposted from above = xx
g Cu remaining in solution = zz
M = moles/2L = zz
This assumes no electrolysis of the water (highly unlikely I think).

Answer this Question

Related Questions

Chemistry - If 1.70 liters of 0.670 M CuSO4 solution is electrolyzed by passing ...
chemistry - If 1.70 liters of 0.670 M CuSO4 solution is electrolyzed by passing ...
Chemistry - If 0.500 L of a 0.600 M SnSO4 solution is electrolyzed for a period ...
Chemistry - Calculate the mass of copper and volume of oxygen (at 25 C And ...
Chemistry - An aqueous KNO3 solution is made using 72.5 grams of KNO3 diluted to...
chemistry - Record measured absorbance for each tube in following table. ...
chemistry - Record measured absorbance for each tube in following table. ...
chem - Calculate the mass of copper and volume of oxygen (at 25 C And 760 mmHg) ...
Chemistry - A solution of H2SO4 was electrolyzed using the inert platinum ...
chemistry - As a technician in a large pharmaceutical research firm, you need to...

For Further Reading

First Name:
School Subject:
Answer: