Homework Help: chemistry

Posted by greentree on Saturday, July 14, 2012 at 8:57pm.

1. If half cell A has a standard reduction potential of E= -1.10 V and half cell B has a standard reduction potential of E= 0.65 V, which half-cell is the anode?

2. Which half cell has the higher potential energy?

3. Calculate Ecell for this voltaic cell.

chemistry - DrBob222, Saturday, July 14, 2012 at 11:26pm
A + e ==> A^- Eo = -1.10vb
B + e ==> B^- Eo = 0.65v
----------------------
For a spontaneous cell A must be reversed; therefore,
A^- ==> A + e E = 1.10
B + e ==> B^- E = 0.65
------------------------
A^- + B ==> A + B^-
Ecell = 1.10 + 0.65 = ?

The anode is where oxidation occurs and oxidation is the loss of electrons; therefore, A^- must be the anode.

Answer this Question

Related Questions

Chemistry - 1) Assume that the reference half-cell is changed to a standard ...
Chemistry - 1) Assume that the reference half-cell is changed to a standard ...
chemistry - A voltaic cell is contructed in which a copper wire is placed in a 1...
Chemistry - A galvanic cell consists of La^3+/La half-cell and a standard ...
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...
Chem - In conjunction with a standard hydrogen electrode, the La3+|La half-cell ...
Chemistry Please help!! - An electrochemical cell that uses the reaction Ti^3...
Chemistry - An electrochemical cell that uses the reaction Ti^3+ + 2Cr^2+ -&...

For Further Reading

First Name:
School Subject:
Answer: