Define empirical
formula, molecular formula and structural formula.
Ans. Empirical Formula
The
empirical formula of a compound is its simplest formula (hat, represents the
smallest ratio between the atoms of different elements present in the molecule.
For example, the smallest ratio between the atoms of carboni hydrogen and
oxygen in glucose, C6H12O6 is 1:2:1. Thus the empirical formula of glucose is CH2O
Molecular Formula
The
molecular formula of a compound is a multiple of the empirical formula showing
the actual number of atoms present in the compound. For example, the molecular
formula of benzene, (IniIn, is six times its empirical
formula, CH.
Structural Formula
The
structural formula of a compound shows the exact picture? as to how tho various
atoms are? bonded to e?ach other in the molecule. For example, the1
structural formulas of ethane and acel ic acid are:
Ethanoic acid
Ethane
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