Formulas You Should Know

Question 1

Atomic Mass

Answer 1

(fractional abundance x isotopic mass)

Question 2

Avogadro’s number

Answer 2

1 mol = 6.022x10^23

Question 3

molar mass

Answer 3

((# of atoms in first element x atomic mass of 1st element )) + ((# of atoms of 2nd element in chemical formula + atomic mass of 2nd element))