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One gram of commercial AgNO_3is dissolved in 50 mL of water. It is treated with50 mL of a KI solution. The silver iodide thus precipitated is filtered off. Excess of KI in the filtrate is titrated with (M/10) KIO_3solution in the presence of 6 M HCl till all I ions are converted into ICl. It requires 50 mL of (M/10) KIO_3solution. 20 mL of the same stock solution of KI requires 30 mL of (M/10) KIO_3under similar conditions. Calculate the percentage of AgNO_3in the sample. |
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Answer» SOLUTION :REACTION : `KIO_3 +2KI + 6HCL= 3ICl + 3H_2O ` 85% |
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