Chemical Formulas

Question 1

Formula for ionic compounds

Answer 1

Formula is defined for a formula unit, which is the smallest electrically neutral unit. All formulas for ionic compounds are empirical because they contain the smallest repeating unit in the compound, as ionic compounds are extended lattices, not molecules.

Question 2

Molecular coompounds

Answer 2

Molecular formulas specify exact number of atoms of each element in one molecule

Question 3

Empirical formula

Answer 3

Formula of the smallest repeating unit in the compound

Question 4

Molecular fomula

Answer 4

Exact formula of a single molecule of a given compound