How this calculator works
Enter the values for first value, second value and review the units before calculating.
Formula / method
n = mass ÷ molar mass
Worked example
18 g of a substance with molar mass 18 g/mol equals 1 mol.
Assumptions and limitations
Mass and molar mass use grams and grams per mole.
Purity, hydration state and composition errors are not estimated.