What is the molar mass of #SO_3#?
The molar mass of
To find the molar mass of a compound you would use the periodic table to find the molar mass of each element separately.
In our case, our two elements are sulfur and oxygen . Find the molar mass of S (32.07 g/mol) and O (16.00 g/mol). Next multiply the molar mass of each element by the number of atoms given in the chemical formula.
Since there is only 1 sulfur atom, the molar mass can be taken directly from the periodic table
Since there are 3 atoms of oxygen, we have to multiply its molar mass by 3 to obtain
Next we just add the final masses of each element together: