[apaturia]

The question goes as this:
In this exercise we take a look on SrSO4 diluted in water at 25 degrees celcius. The conductivity capability of Sr^++ is 118,9 S cm^2 mol^-1 and the conductivity capability of SO4^-- is 160,0 S cm^2 mol^-.
The solubility product of SrSO4 in water is 4 x 10^-7.
a) What is the molar conductivity by in infinite dilution of SrSO4 in water? How big a part of the electrical transport is due to positive ions and how big a part is due to negative ions? Explain why it is said, that SrSO4 is a strong electrolyte.
b) Calculate by the help of the Debye-Hückel law the solubility of SrSO4 in water in mol kg^-.
How much bigger is the specific conductivity capability of a saturated solution of SrSO4 compared with plain water?

I have no clue at all how to calculate this :-(

THX!!!
P.S I tried to translate this the best I could from Danish.

[Borek]

Start by listing all equations related to the solubility and the conductivity that you think may apply.