Answer:
Molar mass
of He =4 g 4g He = 1mol
=6.022 x1023
atoms
4 g of He contains 6.022 x
1023 atoms
12 g or He will contain
= 18 .066 x
1023 atoms
Hence, 12 g of He is
equal to 18.066 x 1023 atoms,
You need to login to perform this action.
You will be redirected in
3 sec