Answer to Question #90218 in Chemistry for thanos

Question

The concentration of iron in a solution was found to be 9.9ppm determined by icp-aes.The solution was prepared by solving X gr of FeSO4*7H20(mr=278.01) in 2ml conc,HCLand diluted to 25ml with MQ water in a flask.From primary solution ,5ml was transferred to a 50ml flask and diluted to mark with MQ water and iron conc, was measured from an ordinary matrix matched calibration curve.What was the weight of substance from the beginning if the assay on the can was noted to be 93,5% and what was the molar conc,of sulfate in solution?

Answer 1

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