Question

How many moles are there in 3.01x1023 molecules of NO2?

Answer 1

$\huge\mathbb{QUESTION-}$

How many moles are there in 3.01 × 10²³ molecules of $\sf{NO_2}$

$\huge\mathbb{SOLUTION-}$

$\large\underline{\underline{\sf Given:}}$

• Number of molecules = 3.01 × 10²³

$\large\underline{\underline{\sf To\:Find:}}$

• Number of moles (n).

$\large\underline{\underline{\sf Formula\:Used:}}$

$\large{\boxed{\sf Moles(n)=\dfrac{Number\:of\: molecules}{N_A}}}$

$\implies{\sf \dfrac{3.01×10^{23}}{6.02×10^{23}} }$

$\implies{\bf \red{ 0.5\:moles}}$

$\Huge\mathbb{ANSWER-}$

Number of moles of $\sf{NO_2}$ is ${\bf \red{0.5\:moles}}$