# Question #c6aa6

Mar 31, 2017

At $\text{STP}$, $1$ mole of an Ideal Gas occupies $22.4 \cdot {\mathrm{dm}}^{3}$ or $22.4 \cdot L$

#### Explanation:

(And of course this definition differs across curricula, and across countries...........)

So $\text{mass of ammonia} = \frac{35.4 \cdot L}{22.4 \cdot L \cdot m o {l}^{-} 1} \times 17.03 \cdot g \cdot m o {l}^{-} 1$

$\cong 27 \cdot g$.

I have assumed Ideal Gas behaviour here. Given that we assess the behaviour of ammonia gas, is this a reasonable assumption?