Answer to Question #97314 in Chemistry for Shantal

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Zn2+ waswas elated from resin using column chromatography. The initial concentration after eluting of Zn2+ = 0.9mol/l.The zn2+ was made up to 250 ml in A volumetric flask(stock solution)
25ml of stick solution was titrate with 0.02M EDTA.the volume of EDTA used is 18.9ml. What volume of stock is need to prepare 50ml of 0.5Mg/l Zn?

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