Question

Calculate the osmotic pressure at 22 °C of a 0.25 M solution of a) dextrose, b) magnesium
chloride.

Answer 1

dextrose:
pi = MRT
pi = 0.25 x 0.08206 x (273+22)

MgCl2.
pi = iMRT where i = 3 for MgCl2.