1. Find the empirical formula mass:

* N (nitrogen) has a molar mass of 14 g/mol

* H (hydrogen) has a molar mass of 1 g/mol

* The empirical formula NH2 has a mass of 14 + (2 * 1) = 16 g/mol

2. Calculate the ratio of molar mass to empirical formula mass:

* 32 g/mol (molar mass) / 16 g/mol (empirical formula mass) = 2

3. Multiply the empirical formula subscripts by the ratio:

* NH2 * 2 = N2H4

Therefore, the molecular formula of the molecule is N2H4 (hydrazine).