A 50.0-mL solution containing Ni2+ and Zn2+ wastreated with 25.0 mL of 0.0452 M EDTA to bind all the metal. Theexcess unreated EDTA required 12.4 mL of 0.0123 M Mg2+ for completereaction. An excess of the reagent 2,3-dimercapto-1-propanol wasthen added to displace the EDTA from zinc. Another 29.2 mL of Mg2+was required for reaction with the liberated EDTA. Calculate themolarity of Ni2+ and Zn2+ in the original solution