Chapter 12, Problem 24A

Interpretation Introduction

Interpretation:

Whether the formula written for ionic compound is molecular formula or empirical formula needs to be written.

Concept introduction:

Ionic compound is formed when there is complete transference of electron from metal to non-metal.

Answer to Problem 24A

The formula written for ionic compound is empirical formula.

Explanation of Solution

Ionic solid contains more number of positively and negatively charged ions. It is represented as simple whole number value. Ions are arranged in crystal lattice so that attraction between the ions is maximum and repulsions are minimum.

For example:

One unit of Crystal lattice of $NaCl$ has $6N{a}^{+}and6C{l}^{-}$ therefore, $NaCl$ is the empirical formula.

Conclusion

Thus, the formula of ionic compound is actually the empirical formula.