We have learnt the number of entities present in a given substance so far. However, the percentage of a specific element present in a compound is frequently required.
The percentage composition of a compound represents the mass of each element present in \(100\) \(g\) of the compound.
The formula for calculating the mass percent of an element is given below:
Let us look at few examples for calculating percentage composition.
Calculate the mass percent of water (\(H_2O\)).
Calculate the mass percent of methane (\(CH_4\)).
This percentage composition is used for determining the empirical formula and molecular formula.