Question

How to calculate molar mass

Answer 1

Molar mass is the sum of all atomic masses in a given compound in relative grams. To explain how to calculate the Molar mass, let me show you an example.

Calculate the Molar mass of H2O

now, atomic mass of H - 1
Atomic mass of O - 16

Now, molar mass = 1(2) + 16

= 2 +16
= 18 u = 18 grams (relative mass in grams)

Answer 2

Molar masses of chemical compounds are equal to the sums of the molar masses of all the atoms in one molecule of that compound. After that, If you have a subscript in a chemical formula, then you multiply the number of atoms of anything next to that subscript by the number of the subscript. I'm kinda new to this stuff. Hopefully I helped :/