Question

How many grams of Cu can be produced from 1.0 L of 0.50 M aqueous Cu(NO3)2...

How many grams of Cu can be produced from 1.0 L of 0.50 M aqueous Cu(NO3)2 when a current of 0.50 A is run through the solution for 2 hours?

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

1.186g

Explanation

Cu2+(aq) + 2e -------> Cu(s)

1mole of Cu is deposited by 2 moles of electrons

1A = 1coulombs per second

0.5A = 0.5 coulombs per second

cuurent duration = 2hours = 7200s

Total coulombs passed = 0.5C/s × 7200s = 3600C

Faraday constant = 96485Coulombs per mole of electrons

No of moles of electrons = 3600C/96485C/mol = 0.03731mol

No of moles of Cu deposited = 0.03731mol/2 = 0.01866mol

Molar mass of Cu = 63.55g/mol

mass of Cu deposited = 0.01866mol × 63.55g/mol = 1.186g

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 1.0 L solution contains 3.00×10-4 M Cu(NO3)2 and 1.63×10-3 M ethylenediamine (en). The Kf for...
A 1.0 L solution contains 3.00×10-4 M Cu(NO3)2 and 1.63×10-3 M ethylenediamine (en). The Kf for Cu(en)22+ is 1.00×1020. What is the concentration of Cu2+(aq ) in the solution?
An electrolytic cell is set up using a solution of aqueous Cu(NO3)2, and an external 6V...
An electrolytic cell is set up using a solution of aqueous Cu(NO3)2, and an external 6V battery is connected to two inert electrodes which are dipped into the solution. If a current of 113 mA flows through the cell for 30.00 minutes, what mass of solid copper metal will be produced at the cathode?
2. Toxic chromate can be precipitated from an aqueous solution by bubbling SO2(g) through the solution....
2. Toxic chromate can be precipitated from an aqueous solution by bubbling SO2(g) through the solution. How many grams of SO2 are required to treat 1.0 x 10^8 L of 0.000100 M CR+3?
reaction : pb(no3)2 + 2KCl ----> PbCl2 +2KNO3 1) how many grams of PbCl2 can be...
reaction : pb(no3)2 + 2KCl ----> PbCl2 +2KNO3 1) how many grams of PbCl2 can be formed from 50.0 mL os a 1.5 M KCl solution ? 2) how many mL of a 2.00 M Pb(NO3)2 solution are required to react with 50.0 mL of a 1.5 M KCl solution ? 3) what is the molarity of 20.0 mL of a KCl solution that reacts completely with 30.mL of a 0.400 M Pb(NO3)2 ?
How many grams of magnesium nitrate can be produced from 50.0 mL of a 2.0 mol/L...
How many grams of magnesium nitrate can be produced from 50.0 mL of a 2.0 mol/L nitric acid solution reacting with excess magnesium carbonate?
A current of 5.94A is passed through a Cu(NO3)2 solution. How long (in hours)would this current...
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 3.56 A is passed through a Cu(NO3)2 solution. How long (in hours) would...
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 1.00 L solution contains 2.75x10^-4 M Cu(NO3)2 and 1.80x10^-3 M ethylenediamine (en) . The Kf...
A 1.00 L solution contains 2.75x10^-4 M Cu(NO3)2 and 1.80x10^-3 M ethylenediamine (en) . The Kf for Cu(en)_2 ^2+ is 1x20^20 . what is the concentrationof Cu^2+ (aq) in the solution?
When aqueous solutions of K2SO4 and Pb(NO3)2 are combined, PbSO4 precipitates. Calculate the mass, in grams,...
When aqueous solutions of K2SO4 and Pb(NO3)2 are combined, PbSO4 precipitates. Calculate the mass, in grams, of the PbSO4 produced when 2.46 mL of 0.132 M Pb(NO3)2 and 3.82 mL of 0.748 M K2SO4 are mixed. Calculate the mass to 3 significant figures.
A 1.00 L solution contains 2.50×10^-4 M Cu(NO3)2 and 2.50×10^-3 M ethylenediamine (en). The Kf for...
A 1.00 L solution contains 2.50×10^-4 M Cu(NO3)2 and 2.50×10^-3 M ethylenediamine (en). The Kf for Cu(en)22+ is 1.00×10^20. What is the concentration of Cu2+(aq ) in the solution?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT