Benzophenone Lab Report

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In part A of this laboratory experiment Benzophenone, which is nonpolar and has a polar carbonyl group, was analyzed as partially soluble in methyl alcohol and hexane but insoluble in water. This is because the ketone carbonyl group in Benzophenone will make the molecule slightly polar and thus partially soluble in the intermediately polar solvent methanol and nonpolar solvent hexane due to Benzophenone mostly being highly nonpolar and hexane being nonpolar. However water is highly polar and therefore benzophenone does not dissolve because it is overall nonpolar. The second solid organic compound; Malonic acid, a polar molecule, was analyzed as soluble in water (highly polar) and methanol (intermediate polarity). However Malonic acid was analyzed…show more content…
This is because 1-octanol is a nonpolar hydrocarbon and will become soluble with a nonpolar hydrocarbon such as hexane and insoluble with a highly polar molecule such as water. For the second alcohol, 1-butanol was found to be partially soluble in water and hexane. This is because 1-butanol has slightly polar characteristics due to the polar OH bond, which makes 1-butanol partially soluble in water (highly polar) and hexane (nonpolar). For the last alcohol of part B, methanol was found to be soluble in water and partially soluble in hexane. This is because methanol is an intermediate polar compound and water is highly polar molecule, which means it will be soluble. However hexane is nonpolar but methanol has nonpolar hydrocarbon bond that makes it partially soluble in…show more content…
However ethyl 4-aminobenzoate won't be soluble in 1.0 M NaOH because it has no acidic functional groups as HCL has. Ethyl 4-aminobenzoate was analyzed to be soluble in 1.0 M HCl, but upon adding 6.0 M of sodium hydroxide to the solution of ethyl 4-aminobenzoate and 1.0 M of HCL, ethyl 4-aminobenzoate became insoluble. The lone pairs in nitrogen attracted to the positive H+ ion making it a water-soluble compound. But once the 6.0 M NaOH was added, the hydroxide ion and the H+ bonded to form water and the nitrogen converted back to its original structure with 2 hydrogen bonds and a lone pair of electrons making the ethyl 4-aminobenzoate precipitate out. Overall the results of this laboratory experiment shows that both the acid and base become more soluble when they were ionized and less soluble when they were not

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