Question

What is The no. of gram atoms in 8g of He??!?

Answer 1

Atomic mass of Helium is 4. So if you take 4 grams of Helium atom,then the number of atoms in it will be 6.0203x10^23,that is avogadro number. If you take 8 grams of Helium,then it will be double of avogadro number. Ans: 2x6.023x10^23

Answer 2

number of Gram atoms in 1 kg of helium