Question

calculate the number of atoms present in 24 gram of helium. He=4u​

Answer 1

52 moles of He contains 52 x 6.023 x10^23 2) Atomic mass of Helium is 4u = 2protons + 2 Neutrons = 1 atom. No. of atoms in 52u = 52/4 = 13 ...

Explanation:

Calculate the number of atoms in each of the following:(i) 52 moles of Ar(ii) 52 u of He(iii) 52 g of He.