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A 30 ml solution containing an unknown amount of I- was treated with 50 ml of 0.365 M AgNO3 .The precipitated AgI was filtered off and the filtrate ( plus Fe 3+) was titrated with 0.287 M KSCN. When 37.6 ml had been added the solution turned red .How many milligrams of I- were present in the original solution?

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