kristina_elt
New member
Hello,
I have a problem with this task:
"Water with pH 5 and reduction potential +0.30 V flows through copper pipe at 25 °C. Calculate how much copper dissolves (in ppm) in water due to corrosion of this pipe. Standard reduction potential of copper Cu0/Cu2+ is 0.34 V."
I spent lot of hours with lot of calculations without any glory
Please, is there anybody who could try to help me?
This figure could be helpful:
http://www.advancedaquarist.com/2003/5/chemistry_album/figure3.gif
I tried to use Nernst equation:
Eh = E0 - (RT / nF)*(lnQ).
The main equation I used was:
Cu + 2H+ -> Cu2+ + H2.
I have a problem with this task:
"Water with pH 5 and reduction potential +0.30 V flows through copper pipe at 25 °C. Calculate how much copper dissolves (in ppm) in water due to corrosion of this pipe. Standard reduction potential of copper Cu0/Cu2+ is 0.34 V."
I spent lot of hours with lot of calculations without any glory
Please, is there anybody who could try to help me?This figure could be helpful:
http://www.advancedaquarist.com/2003/5/chemistry_album/figure3.gif
I tried to use Nernst equation:
Eh = E0 - (RT / nF)*(lnQ).
The main equation I used was:
Cu + 2H+ -> Cu2+ + H2.
