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Ideal Gas Equation

Which of the ...

Question

Which of the following substances would have the lowest density?

H_{2} (g)

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H_{2} O (g)

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H g (g)

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H_{2} O (l)

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Solution

The correct option is A $H_{2} (g)$
Density is mass per unit volume.

$H_{2}$ is the lightest gas that has the lowest atomic weight with a density $0.08988 g / L$ .

So, the correct option is $A$

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