Question

The value of ksp for cui is 1 × 10−12. what is the solubility for cui?

Answer 1

The solubility of CuI can be calculated using the Ksp value. The molar solubility of CuI is approximately 1 × 10^(-6) M.

Step-by-step explanation:

The solubility of a compound can be calculated from its Ksp value. The Ksp represents the equilibrium constant for the dissolution of a slightly soluble compound in water. To calculate the solubility of Cui, we need to equate the expression for Ksp to the molar solubility, represented as 'x'.

For the compound Cui, the balanced equation for dissolution in water is CuI(s) ⇌ Cu+(aq) + I-(aq). The Ksp expression is Ksp = [Cu+][I-] = (x)(x) = x^2. Given that the Ksp value for CuI is 1 × 10^(-12), we can set up the equation x^2 = 1 × 10^(-12) and solve for 'x' to find the molar solubility.

The molar solubility of CuI is the positive square root of the Ksp value, so the solubility of CuI is approximately 1 × 10^(-6) M.

Answer 2

The solubility for CUi is calculated as follows
write the equation for dissociation of CUi

that is CUI ----> CU + + i -

Ksp= (Cu+) (I-)

let the concentration of CU+ be represented by x and also that of I- be represented by also x

Ksp is therefore= X2

x2 = 1x10^-12
find the square root x is therefore = 1 x10^-6

by use of mole ratio the solubity of CUi is therefore = 1 x10 ^-6