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Chile saltpetre, a source of NaNO_(3) also contains NalO_(3). The NalO_(3) can be used as a source of iodine,produced in the follwng reactions: IO_(3)^(-) + 3HSO_(3)^(-) rarr I^(-) + 3H^(+) + 3SO_(4)^(2-) ....(1) 5I^(-) + IO_(3)^(-) + 6H^(+) rarr 3I_(2(s)) + 3H_(2)O ....(2) One litre of chile salphere soltuion containg 5.08g NaIO_(3) is treated with stochiometric quanity of NaHSO_(3). Now an additional amountof same solutionis addedto reactiion mixture to bring about the secoundreaction. How manygrams of NaHSO_(3) are required in step i and what additional volume of chile salphetre must be added in step II to bring in complete conversion of I^(-) to I_(2)? |
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