1. Look up the atomic masses of each element:

* Carbon (C): 12.011 g/mol

* Hydrogen (H): 1.008 g/mol

* Oxygen (O): 15.999 g/mol

2. Multiply the atomic mass of each element by the number of atoms in the formula:

* Carbon: 16 atoms * 12.011 g/mol = 192.176 g/mol

* Hydrogen: 32 atoms * 1.008 g/mol = 32.256 g/mol

* Oxygen: 2 atoms * 15.999 g/mol = 31.998 g/mol

3. Add the masses of all the elements together:

192.176 g/mol + 32.256 g/mol + 31.998 g/mol = 256.43 g/mol

Therefore, the molecular mass of C16H32O2 is 256.43 g/mol.