Which of the following is NOT a true statement concerning empirical and molecular formulas?
a. The empirical formula of a compound can be triple its molecular formula.
b. Several compounds can have the same empirical formula, but have different molecular formulas.
c. The molecular formula of a compound can be the same as its empirical formula.
d. The molecular formula of a compound can be some whole-number multiple of its empirical formula.
An empirical formula is the simplest ratio of atoms in a formula unit. The true ratio of atoms in a formula unit is called the molecular formula, also with the true molecular mass of a chemical formula. Empirical formulas represent the lowest ratio of coefficients in a chemical formula.
