How to calculate a molar mass

Well, you have to go to the periodic table, and then you have to find the atomic mass average of the element. Then you have to multiply each of the atomic mass by the number of atoms inside the formula. Lastly, add up the results of step 3, and for example, I will use sulfuric acid, 2.015+32.066+63.998 + 98.079. That is how to calculate the molar mass.