Question

What is the molality of chloride ions in an aqueous solution of magnesium chloride for which xmgcl2 is 0.01?

Answer 1

MgCl₂ ---> Mg(2+) + 2Cl(-)
0,01-x.............x.............2x

MgCl₂ ---> Mg(2+) + 2Cl(-)
0,01-x.............x.............2x
0...................0,01.......0,02

The molality of chloride ions is 0,02M.