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Expt. 11: Determination of Available Iodide by Andrew's Titration.

Expt. 11: Determination of Available Iodide by Andrew's Titration.

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vi) Calculate the concentration (in mol dm -3 ) <strong>of</strong> iodide in solution ‘I’.<br />

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vii) Calculate the concentration (in g dm -3 ) <strong>of</strong> iodide in solution ‘I’.<br />

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viii) 0.1466 g <strong>of</strong> an iodide sample, MI (group 1 or <strong>11</strong>), was dissolved in 25 cm 3 <strong>of</strong> conc. HCl in a<br />

reagent bottle containing 5 cm 3 <strong>of</strong> CCl 4 . This required 23.36 cm 3 <strong>of</strong> a 0.0189 M KIO 3 solution<br />

to completely decolourize the organic layer. Calculate the percentage iodide in the sample and<br />

hence determine the identity <strong>of</strong> the metal, M.<br />

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