Question

calculate the number of atoms in 0.008 gram phosphorus

Answer 1

No of moles=given mass/molar mass
n =0.008/31
n = no of molecule / avagadro no
Avagadro no = 6.022*10²³
Answer 1.55*10 power 20

Answer 2

Explanation:

no of moles =given mass /molar mass

n=0.008/31

n=no of molecule /avargdo no

1.55*10°20