What is total IONIC concentration in a solution of #MgCl_2(aq)# at #0.25*mol*L^-1# concentration?

1 Answer
Oct 3, 2016

Answer:

The total concentration of ions from the solute is #0.75*mol*L^-1#.

Explanation:

In aqeous solution, magnesium chloride ionizes according to the following equation:

#MgCl_2(s) rarr Mg^(2+) + 2Cl^-#

Thus three equiv of ion result for each equiv of magnesium chloride: #1xxMg^(2+) + 2xxCl^-#

So if the concentation of #MgCl_2(aq)=0.25*mol*L^-1#, then #[Mg^(2+)]=0.25*mol*L^-1#, and #[Cl^-]=0.50*mol*L^-1#.

Capisce?