Question

How many molecules of ammonia are contained in 10.4 moles of ammonia, NH3?

Answer 1

Answer:

The answer is "$\bold{6.26 \times 10^{24} \ molecules \ NH_3}$"

Explanation:

1-mole molecules as per Avogadro number$= 6.02 \times 10^{23} \ molecules$

1-mole $NH_3 \to 6.02 \times 10^{23} \ molecules$

$10.4 \ moles \ of \ \ NH_3 :$

$\to \frac{ 6.02 \times 10^{23} \ molecules }{ 1 \ mole\ NH_3} \times 10.4 \ mole \ NH_3\\\\ \to 6.02 \times 10^{23} \ molecules \times 10.4\\\\\to 62.608 \times 10^{23} \ molecules \\\\\to 6.26 \times 10^{24} \ molecules \ NH_3$