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1) 29 mL of helium has a mass of 12.99 and 75 mL carbon dioxide has a mass of 17.2 g. Which is the denser gas? Hint: Remember the density, mass, and volume triangle

Respuesta :

The formula relating mass, density, and volume is:

[tex]\text{Density}=\frac{Mass}{Volume}[/tex]

Let's find density of both of them.

1. Helium

Mass = 12.99

Volume = 29 ml

So, Density is:

[tex]\begin{gathered} \text{Density}=\frac{Mass}{Volume} \\ \text{Density}=\frac{12.99}{29} \\ \text{Density}=0.4479\text{ g/ml} \end{gathered}[/tex]

2.Carbon Dioxide

Mass = 17.2

Volume = 75 ml

So, Density is:

[tex]\begin{gathered} \text{Density}=\frac{Mass}{Volume} \\ \text{Density}=\frac{17.2}{75} \\ \text{Density}=0.2293\text{ g/ml} \end{gathered}[/tex]

Of course, the denser gas would be helium.

Last Answer Choice is right, Helim with 0.44 g/ml

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