Amount of Substance Calculation

The amount of substance is the measurement of a number of particles in a sample. The particles here mentioned can be atoms, protons, neutrons, electrons or any other fundamental particles like quarks. The amount of substance is also referred as material quantity. SI unit for the amount of substance is the mol. It appears in thermodynamic relations such as ideal gas law. Use our online calculator to perform an amount of substance calculation of mole.


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The amount of substance calculation is used in chemical engineering. It is a dimensionless expression and its unit symbol is mol.