Question

Calculate the number of molecules and number of atoms in 1 g of Nitrogen.​

Answer 1

Answer:

There are 14 atoms and 1/14 molecules in N of 1 g

Answer 2

$\huge\underline\purple{\sf Answer:-}$

★$\large{\boxed{\sf No.Of\: molecule={\frac{N_{A}}{28}}}}$

★$\large{\boxed{\sf No.\:of\:atom={\frac{N_{A}}{14}}}}$

$\huge\underline\purple{\sf Solution:-}$

(a) Mole of Nitrogen in 1 g :-

$\large{\boxed{\sf Mole(n)={\frac{Mass}{Molecular\:mass}}}}$

Mass of Nitrogen = 1 g

Molecular weight of Nitrogen = 28g

On Putting value :-

$\large{\sf n ={\frac{1}{28}}}$

Therefore

★$\large\red{\boxed{\sf No.\:of\: Molecule={\frac{N_{A}}{28}}}}$

(b) Number Of atoms in Nitrogen :-

$\large{\sf 1\:molecule\:of\:N_{2}contains}$= 2 atoms

Therefore

${\sf {\frac{N_{A}}{28}} \: Molecule\:of\:N_{2}contains= 2×{\frac{N_{A}}{28}}}$

★$\large\red{\boxed{\sf No.\:of\:Atom={\frac{N_{A}}{14}}atoms}}$