Calculate the solubility (in g/L) of CaSO 4 ( s ) CaSO4(s) in 0.400 M Na 2 SO 4 ( aq ) at 25 ° C 0.400 M Na2SO4(aq) at 25°C. The K sp Ksp of CaSO 4 CaSO4 is 4.93 × 10 − 5 4.93×10−5.

Explanation:

Ionization equation for is as follows.

        s              s           s

Now, the expression for the solubility product is as follows.

                =

                =

As the concentration of is given as 0.4 M.

So,   = 0.4 M

Putting the given values as follows.

              = 12.325 \times 10^{-5}[/tex]

Hence, the solubility of in is .

Therefore, solubility of in g/ml as follows.

           = 0.0167 g/L

Thus, we can conclude that solubility of is 0.0167 g/L.