Question

number of atomic in 42 grams of nitrogen? Atomic mass N-14​

Answer 1

Mole = mass of N2/ molar mass of N2

Mole= 42/ 28

Mole= 1.5

1 mole contain 6.02 × 10^23 atoms

1.5 mole contain 6.02 ×10^23×1.5/1 = 9.03 × 10^23 atoms

Therefore number of atoms in nitrogen is 9.03×10^23

Hope it helped you dear friend