Question

Calculate the no. Of atoms in 0.2 moles of nitrogen molecules

Answer 1

Dear Student,

Number of atoms=Number of moles×Avogadro numberTherefore, no. of atoms=0.2×6.022×1023=1.204×1023 atoms

Answer 2

Answer:

1.204 × 10`23 atoms

Explanation:

Element = Nitrogen (Given)

Moles of Nitrogen = 0.2 moles (Given)

One molecule of nitrogen gas,  N2, contains two atoms of nitrogen,  2 × N

Thus,

Number of atoms = Number of moles×Avogadro number

One mole of sodium atom= 6.022× 10^23 atoms

0.2 mole of sodium atom= 6.022× 10^23× 0.2

Therefore,

Number of atoms = 0.2 × 6.022 × 10`23

= 1.204 × 10`23 atoms