Question

How many moles of N2 in 57.1 g of N2?

Answer 1

We are given –

• Mass of $\bf N_2$ is 57.1 g and we are asked to find number of moles present in 57.1 g of $\bf N_2$

$\qquad$$\pink{\bf\longrightarrow { Molar \:mass \:of \: N_2:-} }$

$\qquad$$\bf \twoheadrightarrow 14\times 2$

$\qquad$$\bf \twoheadrightarrow 28$

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Now,Let's calculate the number of moles present in 57.1 g of $\bf N_2$

$\qquad$$\purple{\bf\longrightarrow { No \:of \:moles = \dfrac{Given \:mass}{Molar\: mass}}}$

$\qquad$$\bf \twoheadrightarrow \dfrac{57.1}{28}$

$\qquad$$\bf \twoheadrightarrow 2.04\: moles$

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