1. At the end of a reaction, I ended up with a 200 mL aqueous solution containing 20 g of benzaldehyde. The solubility of benzaldehyde in dichloromethane (CH2CI2) is 5.0 g per 10O mL and in water it is 1.5 g per 100 mL. What mass of benzaldehyde can be recovered by extraction with: a) 3 x 50 mL potions of dichloromethane? b) 1x 150 mL portion of dichloromethane? c) Which type of extraction is more efficient, multiple or single extractions? d) How much dịchloromethane would be required to remove 98.5% of the benzaldehyde in a single extraction?

1. At the end of a reaction, I ended up with a 200 mL aqueous solution containing 20 g of benzaldehyde. The solubility of benzaldehyde in dichloromethane (CH2CI2) is 5.0 g per 10O mL and in water it is 1.5 g per 100 mL. What mass of benzaldehyde can be recovered by extraction with: a) 3 x 50 mL potions of dichloromethane? b) 1x 150 mL portion of dichloromethane? c) Which type of extraction is more efficient, multiple or single extractions? d) How much dịchloromethane would be required to remove 98.5% of the benzaldehyde in a single extraction?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section13.6: Expressing Solution Composition

Problem 13.7PSP

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