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The partition coefficient of benzoic acid is three in dichloromethane (a.k.a. methylene chloride) with respect to water.

1. If 6 grams of benzoic acid were dissolved in 600mL of water, explain how much benzoic acid would be extracted with four150-mL portions of dichloromethane

2. After four extractions, explain what percentage of the benzoic acid has been extracted use percent recovery?

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