When in water, barium chromate dissociates into ions. The dissociation equation would be as follows:
BaCrO4 = Ba^2+ + CrO4^2+
For this case, we are to convert only from moles per kg to grams per liter. We do as follows:
1.10×10^−5 mol / kg ( 253.37 g /mol) ( 1 kg/L ) = 2.79x10^-3 kg / L = 2.79 g/L
