Question

A current of 4.08 A is passed through a Cr(NO3)2 solution for 1.70 hours. How much chromium is plated out of the solution?

Please include steps so I understand. Thank you.

Answer #1

A current of 5.66 A is passed through a Cr(NO3)2 solution for
1.20 hours. How much chromium is plated out of the solution?
____g

A current of 3.53 A is passed through a Ni(NO3)2 solution for
1.70 hours. How much nickel is plated out of the solution?

A current of 4.24 A is passed through a Cr(NO3)2 solution. How
long (in hours) would this current have to be applied to plate out
5.20 g of chromium?

A current of 4.69 A is passed through a Sn(NO3)2 solution for
1.20 hours. How much tin is plated out of the solution?

A current of 5.22 A5.22 A is passed through a Sn(NO3)2Sn(NO3)2
solution for 1.60 h1.60 h. How much tin is plated out of the
solution?

A current of 3.56 A is passed through a Cu(NO3)2 solution. How
long (in hours) would this current have to be applied to plate out
8.60 g of copper?
Can someone list out the steps to solving this problem, would
help a lot.

A current of 5.94A is passed through a
Cu(NO3)2 solution. How long (in hours)would
this current have to be applied to plate out 6.30g of
copper?

A current of 3.01 A is passed through a Sn(NO3)2 solution. How
long (in hours) would this current have to be applied to plate out
9.00 g of tin?

A current of 5.02 A is passed through a Sn(NO3)2 solution. How
long (in hours) would this current have to be applied to plate out
6.30 g of tin?

What is the pH of a 0.260 M solution of H2SO4? Ka2 =
1.20×10^–2?
Please write out steps if possible so that I can understand,
thank you!

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