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Homework Statement
You must devise a volumetric procedure to determine the percentage or Iron(ii) and Iron (iii) in a mixture containing both.
You are provided with 200cm[tex]^{}3[/tex] of a solution containing between 1.1g and 1.3g of iron ions as a mixture of Fe[tex]^{}2+[/tex] and Fe[tex]^{}3+[/tex](aq). You may assume that each of the two ions is present to at least 30% by mass. You have the normal apparatus required for volumteric analysis but a balance is not available.
The Attempt at a Solution
The max and min. mass range = 1.1x0.3=0.33g min. and 1.3x0.7=0.91g