Lawrie Ryan and Roger Norris Solutions for Chapter: Nitrogen, Exercise 4: Question

Give the formula of ammonium ion.

(A) ${{\mathrm{NH}}_4}^{+}$                         (B) ${{\mathrm{NH}}_2}^{+}$                          (B) ${{\mathrm{NH}}_4}^{-}$

Enter your correct answer as A, B or C.

Explain the difference in the $\mathrm{H}-\mathrm{N}-\mathrm{H}$bond angles of an ammonium ion compared with an ammonia molecule. Reflect on each step you need to go through to arrive answer.

Write a balanced chemical equation, including state symbols, for the reaction of ammonia solution with dilute nitric acid. 

Write a balanced chemical equation, including state symbols, for the reaction of solid ammonium sulphate with solid sodium hydroxide. 

The reaction of solid ammonium sulphate with solid ammonium hydroxide can be classified as an acid-base reaction. Explain.