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Current Location > Formulas in Chemistry > Chemistry (Basics) > Molar Mass

Molar Mass

The molar mass equation is given by:
M = Mr · g · mol-1

Where:
M: molar mass, which is the mass of one mole of a substance
Mr: relative molar mass, also called molecular weight

This equation is obtained from the following equation:

Where:
NA: Avogadro constant, which is NA = 6.0221 · 1023mol-1
mu: molar mass constant, which is mu = 1 g · mol-1