C2d3 has a solubility product constant of 9.14*10-9. what is the molar solubility of c2d3?

The correct answer for the question that is being presented above is this one:

We need to express the ksp expression of C2D3

C2D3

= (2x) 2 (3x) 3

= 108x5

Then set that equation equal to your solubility constant

9.14x10-9 = 108x5

x = 9.67x10-3

So the molar solubility is 9.67x10-3