[zeshkani]

i just have a problem seting up this problem

Calculate the solubility of Zn2+and Fe(CN)4 6 , based on concentration and ignoring activity, in each of
these solutions  0.0100 M NaNO3; 0.1000 M NaNO3;
and the Ksp of ZnFe(CN)6 is 2.1e^-16

i mean how do i set this problem up
any help is welcome

[AWK]

What does it mean?
_{Zn2+and Fe(CN)4 6}

Zn₂[Fe(CN)₆] ?

http://www.chem.purdue.edu/gchelp/howtosolveit/Equilibrium/Solubility_Products.htm