Homework Help: George School

Posted by Daniel on Tuesday, May 20, 2008 at 8:02pm.

Ag2CrO4(s) + 2e- 2Ag(s) + CrO42-(aq)

A chemist wishes to determine the concentration of CrO42- electrochemically. A cell is constructed consisting of a saturated calomel electrode (SCE; which has a reduction potential of 0.242 V relative to the SHE) and a silver wire coated with Ag2CrO4 and suspended in a CrO42- solution.

1) What is the potential of this cell at 25°C when [CrO42-] = 1.00 M?

2) Calculate ΔG for the full-cell reaction at 25°C when [CrO42-] = 1.00 M?

3) What is the potential of this cell at 25°C when [CrO42-] = 1.10×10-6 M?

4) For a solution of unknown [CrO42-], the measured potential for the cell at 25°C is 0.363 V. What is [CrO42-] (in mol/L)?

Chemistry - Writeacher, Tuesday, May 20, 2008 at 10:07pm
Assistance needed.
George School - Sarah, Saturday, May 24, 2008 at 10:30am
yes please

Answer this Question

Related Questions

Electrochemistry - Ag2CrO4(s) + 2e- 2Ag(s) + CrO42-(aq) A chemist wishes to ...
electrochemistry - What is the anode and cathode of this problem? A chemist ...
Chemistry - A chemist wishes to determine the concentration of CrO4-2 ions ...
chemistry - A chemist wishes to determine the concentration of CrO4-2 ions ...
Chemistry - What is the molar concentration of silver ion in a solution ...
Chemistry - For the following balanced equation: 2 Ag+ (aq) + Cu(s) Cu2+ (aq...
chemistry - For the following balanced equation: 2 Ag+ (aq) + Cu(s) Cu2+ (aq...
Chemistry - For the following balanced equation: 2Ag+(aq) + Cu(s)<-&...
chemistry 2 - The voltaic cell reaction NiO2(s)+4H^+(aq)+ 2Ag(s)-->Ni^2+(...
chemistry - A sample of silver chromate (Ag2CrO4) has a mass of 29.0 g. How many...

For Further Reading

First Name:
School Subject:
Answer: