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Empirical Formula

State the sig...

Question

State the significance of formula. Write the formulae of the following compounds: common salt, washing soda, nitric acid, hydrochloric acid, calcium hydroxide and sodium hydroxide.

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Solution

Significance of a Formula:
• A formula indicates the elements present in a compound.
• It indicates the number of atoms of each kind of element present in the compound.
• It makes the calculation of mass of one molecule of a compound easier.

Formula of the following compounds:
Common salt is NaCl
Washing soda is Na₂CO₃
Nitric acid is HNO₃
Hydrochloric acid is HCl
Calcium hydroxide is Ca(OH)₂
Sodium hydroxide is NaOH

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