Part B Explain. Drag the terms on the left to the appropriate blanks on the righ

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Part B Explain. Drag the terms on the left to the appropriate blanks on the right to complete the sentences._ Reset Help 1. Alanine has a and a group available to form with water molecules. Although there are some potential negative -NH2 positive hydrogen bonds dispersion forces between the terminal group of alanine and hexane molecules, we expect the between alanine and water to be stronger Stronger intermolecular attractive forces between alanine and water lead to a more H mix and more smaller AHson for water than for hexane NO2 dipole-dipole forces CH3 COOH -OH ion-dipole forces

Explanation / Answer

Part B)

Alanine has a -NH2 and a -COOH available to form hydrogen bonds with water molecules. Although there are some potential dispersion forces between the terminal -NH2 group of alanine and hexane molecules, we expect the hydrgen bond between alanine and water to be stronger. Stronger intermolecular attractive forces between alanine and water lead to a more positive dHmix and more hydrogen bonds (smaller negative) dHsoln for water than for hexane.

Amino acids form strong hydrogen bonds with water molecules with the carboxylic acid and the amine functionalities. the bonds make the zwitterion form of amino acids more stable in solution.

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