77. Solving a chemistry problem
5. Determine the mass of iodine remaining in V1, ml of a saturated aqueous solution after its extraction with carbon disulfide (CS2) in portions of V2, ml, if the distribution coefficient of iodine between water and carbon disulfide is 0.002 and the solubility of iodine in water is 0.3 g / l. The necessary data for solving the task are given in the table.
Task: Volume of aqueous solution V1 380 ml, Volume of extract V2 10 ml,
Number of extractions 3n
Before solving this task, it is necessary to remember the essence and meaning of one of the laws of physical chemistry - the law of the distribution of a solute between two liquid phases. The process of liquid extraction is based on this law, the data for which are presented in the table.
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