Question

Calculate the number of atoms and molecules in 124 grams of phosphorous and P4 respectively.

Answer 1

6.022 ×10^23 no of atoms

Answer 2

no of atoms or molecules
= (given mass/molecular mass)× N•
=( 124/31×4)×6.022×10^23
= 124/124 × 6.022×10^23
= 6.022×10^23 atoms