wafadaghistani wafadaghistani
  • 12-09-2020
  • Chemistry
contestada

A scuba tank has pressure of 195 kpa at temperature 10 c the volume of the tank is 350 L how many grams of air ins in the tank?

Respuesta :

sebassandin
sebassandin sebassandin
  • 18-09-2020

Answer:

[tex]m=840.88g[/tex]

Explanation:

Hello,

In this case, considering the ideal gas equation as:

[tex]PV=nRT[/tex]

We can first compute the moles of air at the given conditions of 195 kPa (1.92 atm), 10 °C (283K) and 350 L:

[tex]n=\frac{PV}{RT}=\frac{1.92atm*350L}{0.082\frac{atm*L}{mol*K}*283K}\\ \\n=29.03molAir[/tex]

Next, since the molar mass of air is 28.97 g/mol, the mass is computed to be:

[tex]m=29.03mol*\frac{28.97g}{1mol} \\\\m=840.88g[/tex]

Best regards.

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