A solution is prep a red in which a trace or a small amount of Fe 2 is added to a much larger amount of solution in which the [OH-] is 1.0 x 10^-2 M. Some Fe (OH)2 precipitates. The value of Ksp for Fe (OH)2 is 8.0 x 10^-10. Assuming that the hydroxide ion concentration is 1.0 x 10^-2 M, calculate the concentration of Fe 2 ions in the solution. A battery is prepared using the above solution with an iron wire dipping into it as one half-cell. The other half-cell is the standard nickel electrode. Write the balanced net ionic equation for the cell reaction. Use the Nernst equation to calculate the potential of the above cell.