Question

calculate number of atoms is each of the following (average atomic mass :n=14u, s=32)a)0.4 mole of nitrogen​

Answer 1

Answer:

IF MY ANSWER HELPED YOU MARK IT AS THE BRAINLIEST

Explanation:

(a)

No. of moles=0.4

molar mass= 14 grams

So first we gonna find mass

thus,

mass = molar mass × no. of moles

= 14 × 0.4

= 5.6 grams

So now we will find no. of atom

thus,

atoms=given mass÷molar mass×avogardo no.

atoms=5.6 ÷14 × (6.022×10^23)

=0.4 × 6.022×10^23 ATOMS=2.4088×10^23