What is the Van't Hoff Factor of

Question

MgSO4*7H2O?

We're doing a colligative properties lab at my school where we dissolve various amounts of MgSO4 in 100 grams of water. What value/range of values should I expect the Van't Hoff Factor to be?

Answer 1

I would expect two. You have two ions in solution, the magnesium ion, and the sulfate ion.