Question

What is the unit of amount of substance?

Answer 1

Amount of substance

• The amount of a substance that contains the same number of elementary particles(ions, molecules, or atoms) as the number of atoms present in $12\text{g}$of carbon $\left({\mathrm{C}}^{12}\right)$ is called the mole.
• The symbol for the amount of substance is $\text{n}$.
• One mole of a substance contains $6.022\times {10}^{23}$ elementary entities.

Unit of the amount of substance

• The mole, symbol mol, is the unit of the amount of substance.