5. A zinc chloride, ZnCl(aq), solution can be used to make fingerprints more visible to forensics experts. What mass of zinc chloride(s) is needed to make 1.0 L of a 0.020 mol/L solution? TI Answer: 6. Rank these solutions from highest to lowest molar concentration. Show your calculations. In a) 1.03 g/L. Kl(aq) b) 0.89 g/1. Mg(NO3)2(aq) c) 1.32 g/L. CaCl(aq)