Calculate the solubility of cux(ksp=[cu2+][x2−]=1.27×10−36) in a solution that is 0.190 m in nacn.

if you have 1.27*10^-36= [Cu2+][X2-] then you can set both those values equal to x because they're stoichimetrically equal.

1.27*10^-36=x^2

Take the square root of both sides.

1.13*10^-18=x

That would be your solubility.

Solubility = 2.58×10^-18M

Explanation:

Ksp= (Cu^2+)(x)

X=( 1.27x10^-36)/0.190

X= 6.68×10^-36moles/litre

Solubility = Sqrt(6.68×10^-36)

Solubility = 2.58×10^-18M