Amines are organic compounds that contain an NH₂ group, and water-soluble amines are weak bases in water. For example, the compound methylamine, H₃C—NH₂, is a weak base.

(a) Draw a dot diagram for methylamine.

(b) Using dot diagrams, show the equilibrium reaction between methylamine and water.

(c) To which side does the equilibrium in part (b) lie? What did we tell you that allowed you to figure out the answer?

(d) The similar compound ethane, H₃C—CH₃, does not act as a weak base. Why can methylamine act as a weak base but H₃C—CH₃ can’t?

(e) Is it appropriate to call methylamine an electrolyte? If so, is it weak or strong? Explain.