Topic: what is the reduction half-reaction for carbon? (Read 17448 times)

Iwillbethebest · « **on:** March 29, 2009, 08:36:36 PM »

if the reduction half reaction for chromium is:
Cr2+(aq) + 2e ----> Cr(s)

what is the reduction half reaction for carbon?

Borek · « **Reply #1 on:** March 30, 2009, 03:15:18 AM »

Whatever will happen will depend on the initial form of the carbon.

But my intuition tells me that you got something wrong. Please elaborate on the original question.

Iwillbethebest · « **Reply #2 on:** March 30, 2009, 10:39:31 PM »

carbon being a cathode so it is being reduced, so i was thinking what its reduction half reaction

Borek · « **Reply #3 on:** March 31, 2009, 06:53:54 AM »

My bet is that it is just a inert electrode - that is, it doesn't change during the reaction. It just serves as a place for the reaction of whatever is in the solution to take place.

enahs · « **Reply #4 on:** March 31, 2009, 11:32:25 AM »

Borek is most likely correct. Carbon is usually used as an electrode because it does not take place in the reaction, just carries the electrons.

But under extreme conditions you can get:
C(s) + 4H⁺ + 4e^-

CH₄(g)

Iwillbethebest · « **Reply #5 on:** April 01, 2009, 10:16:31 PM »

both your answer really helped! thanks guys!! appreciate it

Topic: what is the reduction half-reaction for carbon? (Read 17448 times)

Iwillbethebest

what is the reduction half-reaction for carbon?

Borek

Re: what is the reduction half-reaction for carbon?

Iwillbethebest

Re: what is the reduction half-reaction for carbon?

Borek

Re: what is the reduction half-reaction for carbon?

enahs

Re: what is the reduction half-reaction for carbon?

Iwillbethebest

Re: what is the reduction half-reaction for carbon?

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