Question

Explain the terms percentage composition empirical formula and molecular formula

Answer 1

Answer:

Empirical formula: what is it and how to find it from percentage composition and molecular formula. Empirical formula expresses the simplest mole ratio of the elements in a compound or molecule. To determine empirical formula from percent composition, you must first convert the percentage composition values to masses

Explanation:

Answer 2

Explanation:

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.  

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

Percentage composition of a substance in a compound is defined as the amount of substance present in a given compound.

The equation used to calculate percentage composition is:

$\text{Percentage composition of a substance}=\frac{\text{Mass of a substance}}{\text{Mass of compound}}\times 100$