Question

Calculate the no. of atoms and molecule in 124g of phosphorus

Answer 1

Ans:

2.48×10^24

Explanation:

No of mole = given mass / molar mass

= 124/30 = 4.13mol

No of molecules= NA × mole

= 6.02×10^23×4.13 = 2.48×10^24molecules

No of Atoms = n × NA × mole

= 1 ×6.02×10^23×4.13 = 2.48×10^24 atoms