“We proved that the Einstein field equation from general relativity is actually a relativistic quantum mechanical equation,” ...

the formula for carbon dioxide is CO 2. It has one carbon atom (relative atomic mass = 12.0) and two oxygen atoms (relative atomic mass = 16.0): M r of CO 2 = 12.0 + 16.0 + 16.0 = 44.0 It could ...

You can work out the molecular formula from the empirical formula, if you know the relative mass formula (M r) of the compound. Add up the atomic masses of the atoms in the empirical formula.