Question

calculate the number of atoms present in 52 amu of he . atomic mass of he = 4 amu​

Answer 1

Answer:

no. of moles of He =52/4 = 13mol

no. of atoms = no. of moles × avogadro no.

no. of atoms = 13 × 6.022 ×10²³

=78 × 10²³ approx