Question

Mole is SI unit of a substance. Define it with examples?

Answer 1

The SI unit for amount of substance is the mole. It has the unit symbol mol. ... The mole is defined as the amount of substance that contains an equal number of elementary entities as there are atoms in 12g of the isotope carbon-12. This number is called the Avogadro number and has the value6.022140857(74)×1023.

Answer 2

The SI unit for amount of substance is the mole. It has the unit symbol mol. ... The mole is defined as the amount of substance that contains an equal number of elementary entities as there are atoms in 12g of the isotope carbon-12.