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A mixture of Nal and CaBr(2) having mole...

A mixture of Nal and `CaBr_(2)` having mole fraction of `CaBr_(2)` equal to `1/3` is mixed with water and solution is made upto 1 litre, where, molality of NaI is found to be `10/9.` If density of solution is `1.15 g//ml.` Calculate mass of `NaI` in original mixture.

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