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What amount of substance containing 60% NaCl, 37% KCl should be weighed out for analysis so that after the action of 25 ml of 0.1N AgNO_(3) solution, excess of Ag^(+)is back titrated with 5 ml of NH_(3)SCN solution? Given that 1 ml of NH_(4)SCN = 1.1 ml of AgNO_(3). [AgNO_(3)+NaSCN rarr AgSCN + NaNO_(3) ] |
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