# Question #a85c7

Then teach the underlying concepts
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#### Explanation

Explain in detail...

#### Explanation:

I want someone to double check my answer

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anor277 Share
Aug 1, 2017

We know that the molar volume of an Ideal Gas at $\text{STP}$ (check the definition!) is $22.7 \cdot L \cdot m o {l}^{-} 1$...we gets a bit over $1 \cdot L$

#### Explanation:

We then have to find the molar quantity of dioxygen gas. Now it is a fact that ALL the elemental gases (save the Noble gases) are diatomic....i.e. ${H}_{2} , {N}_{2} , {O}_{2} , {F}_{2.} \ldots \ldots . .$

And so we work out the product......

$\text{moles of gas"xx"molar volume......}$

$= \frac{1.6 \cdot g}{32.00 \cdot g \cdot m o {l}^{-} 1} \times 22.7 \cdot {\mathrm{dm}}^{3} \cdot m o {l}^{-} 1 \cong 1 \cdot L$.

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