Molecular Weight Calculator
Enter a chemical formula e.g. H2O, NaCl, C6H12O6, H2SO4
Molar mass (molecular weight) is the mass of one mole (6.022 × 10²³ molecules) of a substance. It is calculated by summing the atomic masses of all atoms in the chemical formula.
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Fun Fact
One mole of water (18 g) contains about 6 × 10²³ molecules — more than the number of grains of sand on all Earth's beaches.
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