Question

A formula that relates the amount of a substance to a mass?​

Answer 1

Step-by-step explanation:

A formula mass of substance is a sum of the average atomics masses of each atom represented in the chemical formula and is expressed in atomic mass units.the formula mass of covalent compound is also called the molecular mass

Answer 2

i believe its n= m/M

n - number of moles
m - mass of substance
M - molar mass of substance