lab1 - Yichen (Emily) Li 6/28/11 Investigating Solubility...

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Yichen (Emily) Li 6/28/11 Investigating Solubility and Acid-Base Reactions In Part 1 of the lab, hexane, a non-polar molecule, mixes well with non-polar molecules: diethyl ether, ethyl acetate, and dichloromethane. Ethanol and acetone are aprotic and dipolar, so they mix well in both polar and nonpolar solvents and are also miscible in hexane. Water, on the other hand, is polar, so it does not mix with hexane. In Part 2, water, a polar solvent, does not mix with nonpolar liquids like diethyl ether, ethyl acetate, dichloromethane, and toluene. Water is miscible with acetone and ethanol because they are polar molecules; acetone has a C=O double bond while ethanol has an –OH functional group and that causes the dipole pulls. In Part 3, ethanol and dichloromethane are miscible in water because of their polarity. Similarly, 1-propanol is miscible in water because of its –OH functional group. 1-butanol is less soluble in water because as the carbon chain elongates, the alcohol becomes less polar. This is
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lab1 - Yichen (Emily) Li 6/28/11 Investigating Solubility...

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