Question

How many moles are in 4.65 x10^24 molecules of no2?

Answer 1

1mole =6*10^23
So divided 4.65*10^24 by 6*10^23=7.75

Answer 2

Answer:

$n_{NO_2}=7.72molNO_2$

Explanation:

Hello,

In this case, the following molecule-mole relation is applied by knowing that in 1 mole of molecules there $6.022x10^{23}$ molecules that is equal to the Avogadro's number, thus:

$n_{NO_2}=4.65x10^{24}molecules NO_2*\frac{1molNO_2}{6.022x10^{23}moleculesNO_2} \\n_{NO_2}=7.72molNO_2$

Best regards.