INORGANIC CHEMISTRY
You have an aqueous sample that contains V2+, K+, Hg2+ and Ni2+ ions. Using (relatively) common anions and/or ligands, propose a method to separate these ions. You are not simply trying to identify which ions are present, you must separate them so that at the end of your sequence, you have four separate containers which each contain a different metal. (For simplicity sake, assume that if you find a way to remove one metal by precipitation it will be completely removed from the solution without carrying along any of the other metals.)