Type your answer on the lines below, or write it out on paper.
When an excess of bromoethane reacts with ammonia, the organic products form in the order: ethylamine, then diethylamine, then triethylamine, then tetraethylammonium bromide.
Explain why the reaction does not stop at ethylamine.
Give the formula of the final product.
State how the conditions could be changed to obtain mainly ethylamine.