Chemistry
posted by Andrew .
Calculate the value of the solubility product (Ksp) for CdS given the following standard reduction potentials:
CdS + 2e > Cd + S2 E° = 1.21V
Cd+2 + 2e > Cd E° = 0.402V

CdS + Cd > Cd + Cd+2 + S2 E° = 0.808
===================================
What I tried was:
E = E°  (0.0591/n)log(K)
where E is zero since it is in equilibrium, and n is 2 because there are 2moles of electrons per mole of Cd.
I reversed the net equation because I was looking for the Ksp of CdS.
When I did this, I got 4.53*10^28, but the actual answer was 3.9*10^28.
Please help!
Thanks a lot.
I hope the error was from rounding up. :)
Respond to this Question
Similar Questions

college chemistry
Cadmium sulfide (CdS) is used in some semiconductor applications. It is possible to evision the dissolving of this slightly soluble substance as an oxidationreduction reaction. Calculate the value of the solubility (Ksp) for CdS given … 
math
Sandy decided to give onefourth of her CDs to Jenn. Then she gives onehalf of the remaining CDs to Bob. If she is left with 6 CDs,how many CDs did she have to begin with? 
math
How can I solve this: Sandy decided to give onefourth of her CDs to Jenn. Then she gives onehalf of the remaining CDs to Bob. If she is left with 6 CDs,how many CDs did she have to begin with? 
Chemistry
Calculate the solubility of cadmium sulfide, CdS, in mol/L, given the Ksp value as 8.0 x 10^27. 
elementary
nuber sense minnie has 6 county cds and 5 rock cds.amanda has 5 rock cds and 6 country cds.who has more cds? 
Math
Tell whose CD collection has the greater ratio of rock CDs to total CDs. Glen has 9 rock CDs, 4classical CDs, and 5 other kind of CDs. Nina has 12 rock CDs, 8 classical CDs, and 7 other kind of CDs. 
Math
Find the number of each kind of object in the collection Miranda has 24 CDs in her collection. Of those CDs, 10 are pop CDs. She has 6 more country CDs than jazz CDs. How many country CDs does Miranda have? 
algebra
you buy a storage rack that holds 40 cds. you have 27 cds. write an inequality that describes how many more cds you can hold. you buy 15 cds. will they all still fit? 
Maths
The owner of a music store received a shipment of 1,532 cds the CDs came in 37 boxes the same number of cds were in 36 of the boxes how many cds were in the remaining box 
math
Julia works at a music store. One of her jobs is to stock new CDs on the shelf. A recent order arrived with 215 classical CDs, 125 jazz CDs and 330 soft rock CDs. Julia needs to place the CDs on sale racks with 5 CDs in each group. …