Asked by Anonymous
Stock solution A is prepared by dissolving 182 mg of ferrous ammonium sulfate in water and diluting to volume in a 500-mL volumetric flask. Calculate the concentration of iron, in ppm, in stock solution A.
Answers
Answered by
bobpursley
percent Fe in Fe(NH4)2(SO4)2.6H2O Note this is the common hydrated salt, if different, you need to recalculate.
percentFe=2*55.8/392
mass iron in 182g= percentFe*182=51.8mg
concentration 51.8mg/500g or 51.8mg/500e3mg or 51.8/.5e6 or 10.3 ppm
percentFe=2*55.8/392
mass iron in 182g= percentFe*182=51.8mg
concentration 51.8mg/500g or 51.8mg/500e3mg or 51.8/.5e6 or 10.3 ppm
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