91Ó°ÊÓ

Predict and explain the relative solubilities in water of \(\mathrm{CH}_{3}\left(\mathrm{CH}_{2}\right)_{2} \mathrm{CO}_{2} \mathrm{H}\) and \(\mathrm{CH}_{3}\left(\mathrm{CH}_{2}\right)_{5} \mathrm{CO}_{2} \mathrm{H}\).

What is an amine?

What makes an amine basic?

Draw line structures for the following amines. (a) \(\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}\) (b) \(\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NC}_{2} \mathrm{H}_{5}\) (c) \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2}\)

Draw line structures for the following amines. (a) \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{NH}_{2}\) (b) \(\mathrm{CH}_{3} \mathrm{~N}\left(\mathrm{C}_{2} \mathrm{H}_{5}\right)_{2}\) (c) \(\left(\mathrm{C}_{6} \mathrm{H}_{5}\right)_{2} \mathrm{NH}\)

Explain why \(\mathrm{CH}_{3} \mathrm{CH}_{3}\) has a boiling point of \(-88.6^{\circ} \mathrm{C}\), but the boiling point of \(\mathrm{CH}_{3} \mathrm{NH}_{2}\) is \(-6.3^{\circ} \mathrm{C}\).

Explain why the boiling point of \(\mathrm{CH}_{3} \mathrm{NH}_{2}\) is \(-6.3^{\circ} \mathrm{C}\), but the boiling point of \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{NH}_{2}\) is \(17^{\circ} \mathrm{C}\).

Complete the following equation for the reaction of an amine with hydrochloric acid. $$ \left(\mathrm{CH}_{3} \mathrm{CH}_{2}\right)_{2} \mathrm{NH}+\mathrm{HCl}(a q) \longrightarrow $$

Outline the different types of hydrocarbons.

What is an alkane?