Question

At STP, the density of Nitrogen monoxide is?

Answer 1

Step 1: Given data

Nitrogen monoxide is given at STP

Step 2: Calculating density

The molecular weight of Nitrogen mono oxide ($\mathrm{NO}$)$=$Molecular weight of Nitrogen $+$ Molecular weight of Oxygen

$=14+16\Rightarrow 30\mathrm{gm}$

We know that at standard temperature pressure $1\mathrm{mole}=22.4\mathrm{L}$

Therefore, $30\mathrm{gm}$ of $\mathrm{NO}$ occupy$=22.4\mathrm{L}$

Density$=\frac{\mathrm{Mass}}{\mathrm{Volume}}$

$=\frac{30\mathrm{gm}}{22.4\mathrm{L}}\Rightarrow 1.33\mathrm{g}{\mathrm{L}}^{-1}$

Therefore, the density of Nitrogen monoxide is at STP is $1.33\mathrm{g}{\mathrm{L}}^{-1}$.