Chemistry 360 - Athabasca University

CHEM360 Report Book 2012-14Exp.168. What is the purpose of washing the organic layer with water in Part C Step 6?a) to remove water soluble impuritiesb) to remove organic impuritiesc) to extract the product into the aqueous layerd) to ‘pre-dry’ the organic layer, thereby removing the bulk of the water from the ether9. What is the purpose of washing the organic layer with brine in the same Part C Step 6?a) To remove water soluble impuritiesb) To remove organic impuritiesc) To ‘pre-dry’ the organic layer, thereby removing the bulk of the water from the etherd) To remove all water from the organic layerProduct Characterization10. What is the Retention Factor or R f of pure biphenyl in Lane D in the TLC sketch shown below:a) 1.54b) 0.65c) 0.154d) 0.06562