posted by Rebekah on .
If 0.075 g of MgF2 dissolves per liter of solution, calculate the solubility-product constant.
I got 2.0e-9 but it was not correct.
If you will post your work I will find the error. The correct answer is 6.9787E-9 which rounds to 7.0E-9 to two s.f.