what is the first step when calculating the molar mass of a compound ? A.multiply the total number of atoms in the compound by t
he compound by the combined molar mass.B.Add the total number of atoms for each element of the compound together.C.add the molar mass for each element of the compound together to find the total.D.multiply the number of atoms for each element in the compound by the molar mass.
Multiply each element's atomic mass by the number of atoms of that element in the molecule. This number is represented by the subscript next to the element symbol in the molecular formula.
