Lab 1 - Caroline Ho Investigating Solubility and Acid-Base...

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Unformatted text preview: Caroline Ho Investigating Solubility and Acid-Base Reactions Purpose : In this lab, products of chemical reactions were isolated and purified in order to develop an understanding of the solubility of compounds and explore the effects of acid-base properties on solubility. Discussion: In part 1, the only intermolecular forces (IMF) involved in the hexane solvent are London dispersion forces (LD). The IMF involved in the diethyl ether, ethyl acetate, acetone, ethanol, and dichloromethane solutes are LD forces, dipole-induced dipole interactions (D-ID), and dipole-dipole interactions (D-D). The IMF involved in the mixtures of hexane with each of these solutes are LD forces and D-ID interactions. Because the IMF between the solvents/ solutes and the mixtures are very similar, these solutes are all soluble in hexane. The IMF involved in water are LD forces, D-D interactions, D-ID interactions, and hydrogen bonding. However, the IMF involved in the hexane-water mixture are only LD forces and D-ID interactions. The absence of hydrogen bonding in the mixture results in hexane and water being immiscible. In part 2, the IMF involved in the water solvent and in the 5 solutes from part 1 are the same as those discussed in part 1. IMF involved in mixtures between water and diethyl ether, ethyl acetate, acetone, dichloromethane, are LD forces, D-D interactions, and D-ID interactions. The toluene solute only has LD forces. IMF involved in the mixture of water and toluene are LD forces and D-ID interactions. Because all of the above mixtures do no have any hydrogen bonding, the substances are insoluble in water. In a mixture of water and ethanol, however, there are LD forces, D-D interactions, D-ID interactions, and hydrogen bonding. Because the IMF between the solvent, solute, and mixture are the same, ethanol is miscible in water....
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Lab 1 - Caroline Ho Investigating Solubility and Acid-Base...

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