AP Chemistry help please!?

Posted on 2017-03-22 18:31:00 in Chemistry by SLIMO

I've been absent and have no idea how to do this, please help! 

A solution is prepared in which a trace or small amount of Fe2+ is added to a much larger amount of solution in which the [OH-] is 0.01 M. Some Fe(OH)2 precipitates. The value of Ksp for Fe(OH)2 = 8.0*10^-10. 

a. Assuming that the hydroxide ion concentration is 1.0*10^-2 M, calculate the concentration of Fe2+ in the solution. 

b. A battery is prepared in which the above solution with an iron wire dipping into it is one half-cell. The other half-cell is the standard nickel electrode. Write the balanced net ionic equation for the cell reaction. 

c. Use the Nernst equation to calculate the potential of the above cell. 

Thanks so much!!!

---

Answer Comment

No Answers Posted Yet.