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Alcohol is removed from a mixture of 40wt% alcohol/ 60wt% ketone by washing with water. The wash water used is contaminated with 4wt% alcohol. The

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Alcohol is removed from a mixture of 40wt% alcohol/ 60wt% ketone by washing with water. The wash water used is contaminated with 4wt% alcohol. The water and ketone are mutually insoluble, and the distribution coefficient is KD=0.25 (alcohol mass fraction in ketone/alcohol mass fraction in water). Suppose that you have 500kg/h of the alcohol-ketone mixture to process, and 300kg/h of the wash water is available. Determine the fraction of alcohol removed using one (single-stage) extraction unit

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