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When KIO(3) solution is heated with exce...

When `KIO_(3)` solution is heated with excess of oxalic acid it is found that 1.683 g of `KIO_(3)` is consumed per gram of iodine liberated. Formulate the stoichemistry of the products. (Atmic weight of iodine`=127 and K=-39`)

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Knowing the products, we formulate the stoichiometry and then check its correctness,
`2KIO_(3)+6H_(2)C_(2)O_(4)toK_(2)C_(2)O_(4)+underset(254g)(I_(2))+6H_(2)O+10CO_(2)`
As per this equation 1 g of iodine corresponds to `(428)/(254)=1.685g`, which agrees with the given data.
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