Question

what do you understand by 1 mole of a substance in term of mass and number​

Answer 1

Answer:

i not under stood question

Answer 2

• Mole is chemist's counting unit.

• One mole of any species (atoms, molecules, ions) is that quantity in number having a mass equal to it's atomic or molecular mass in gram.

• The number of particles present in one mole of any substance is fixed with a value 6.022×10^23. This number is called Avogadro number or Avogadro constant.

• The mass of one mole of any substance is constant.