Homework Help: chemistry

Posted by Anonymous on Tuesday, March 27, 2012 at 7:43pm.

Consider the cell: (Pt) H2/H+ || (Pt) H+/H2. In the anode half-cell, hydrogen gas at 1.0 atm is bubbled over a platinum electrode dipping into a solution that has a pH of 7.0. The other half-cell is identical to the first except that the solution around the platinum electrode has a pH of 0.0. What is the cell voltage?

chemistry - DrBob222, Tuesday, March 27, 2012 at 10:10pm
For the anode written as a reduction:
E = Eo - (0.0592/n)log(pH2/H^+)
Eo = 0, and H^+ = 1E-7, E then written as an oxidation will be the negative of that.

E for the cathode written as a reduction:
same equation with different numbers.
Then E cell = Eoxdn + Eredn
I think the answer is approximately 0.50v.
chemistry - Anonymous, Tuesday, March 27, 2012 at 10:49pm
nevermind i got it.. the answer is -.414
thanks though
chemistry - DrBob222, Wednesday, March 28, 2012 at 12:57am
right. I dropped the - sign when I typed it in.

Answer this Question

Related Questions

CHEMISTRY - The half-cell, Tl | Tl+(1 mol L-1), is connected to a Pt | H+ | H2(1...
CHEMISTRY - The half-cell, Tl | Tl+(1 mol L-1), is connected to a Pt | H+ | H2(1...
CHEMISTRY - The half-cell, Tl | Tl+(1 mol L-1), is connected to a Pt | H+ | H2(1...
CHEMISTRY - Consider the following cell: Pt|H2(g, 0.130 atm)|H (aq, ? M)||Ag (aq...
Chemistry - Consider the following cell: Pt|H2(g, 0.460 atm)|H (aq, ? M)||Ag (aq...
Chem - Consider the following cell: Pt(s)|H2(g, p1)|H+(aq, pHA)||H+(aq, pHC)|H2(...
chemistry - The voltaic cell: Pt, H2(g, 1 atm), H+(xM),,H+ (1M), H2(g, 1 atm), ...
Chemistry - The following voltaic cell registers an E cell = 0.100V. Pt|H2(g 1 ...
chemistry - A balanced equation that represents an overall cell reaction is ...
chem - consider the cell Pt(s)I H2 (g. 0.100 bar)I H+ (aq, pH= 2.54)IICl^- ( aq...

For Further Reading

First Name:
School Subject:
Answer: