busayo25 busayo25
  • 25-02-2021
  • Chemistry
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A certain amount of gas at 20c at 4atm occupies a volume of 10dm^3.calculate its number of moles

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sebassandin
sebassandin sebassandin
  • 02-03-2021

Answer:

[tex]n=1.7 mol[/tex]

Explanation:

Hello!

In this case, according to the ideal gas equation, it is possible to notice that:

[tex]PV=nRT[/tex]

Thus, since we are asked to compute moles, we proceed as follows:

[tex]n=\frac{PV}{RT}[/tex]

Now, since 1 L = 1 dm³ and 20 °C equal 293.15 K, we obtain:

[tex]n=\frac{4atm*10 L}{0.08206\frac{atm*L}{mol*K}*293.15K}\\\\n=1.7 mol[/tex]

Best regards!

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