The molecular formula of a chemical compound is a representation of its chemical structure, with the number and type of atoms shown for each element in the compound. In order to determine the molecular formula of a compound, one must know the molar mass of the compound, which is the mass in grams of one mole of the compound. The molar mass of a compound is typically calculated by adding up the atomic masses of each atom in the compound.

The molar mass of the compound in question is 30.069 g/mol. In order to determine the molecular formula, we will need to divide this value by the atomic mass of each atom in the compound. For example, if the compound contains one atom of carbon and two atoms of oxygen, we can divide 30.069 g/mol by the atomic mass of carbon (12.0107 g/mol) and oxygen (15.999 g/mol). This gives us the relative molecular masses of the atoms in the compound, which are 2.503 for carbon and 1.879 for oxygen. This means that the molecular formula for the compound is C2 O2.

It is important to note that this calculation can also be done using relative atomic masses instead of molar masses. The relative atomic mass of an element is the average mass of all the atoms of that element compared to 1/12th the mass of a single carbon-12 atom. For example, the relative atomic mass of carbon is 12.011, while the relative atomic mass of oxygen is 15.999. If we divide 30.069 g/mol by these relative atomic masses, we will get the same result: C2 O2.

In conclusion, the molecular formula for the compound with a molar mass of 30.069 g/mol is C2O2. In order to determine this formula, one must know the molar mass of the compound and the atomic masses of the atoms in the compound. Alternatively, one can also use relative atomic masses instead of molar masses.