Respuesta :

Answer:

The mass of nitrogen dioxide contained in a 4.32 L vessel at 48 degrees and 141600 pa is 10.54 g.

Explanation:

 We know that

       [tex]PV=nRT[/tex] ........... 1

Here given that

 P = 141600 pa  = 141.6 [tex]Kpa[/tex]

 T = 48 degrees = 48 + 273 k  

R  = 8.314 [tex]kpa/mol k[/tex]

V = 4.32 L

Upon substituting these values in equation 1 , we get

    n = 0.229 [tex]mol[/tex]

  We know that molar mass of nitrogen dioxide is 46 [tex]g/mol[/tex].

       So mass of 0.229 [tex]mol[/tex] become

                      ⇒   [tex]\frac{0.229\, mol}{46 \;g/mol} = 10.54 g[/tex]

 

The mass of the nitrogen dioxide is 10.53 g.

The given parameters:

  • Temperature of the gas, T = 48 ⁰C = 48 + 273 = 321 K
  • Pressure of the of the gas, P = 141,600 Pa
  • Volume of the gas, V = 4.32 L

The number of moles of the gas is calculated by applying ideal gas law as follows;

PV = nRT

[tex]n = \frac{PV}{RT} \\\\n = \frac{141,600 \times 4.32 }{8,314 \times 321} \\\\n = 0.229 \ mole[/tex]

The mass of the nitrogen dioxide is calculated as follows;

Molar mass of nitrogen dioxide = 46 g/mole

The mass = 0.229 mole x 46 g/mole

The mass = 10.53 g

Thus, the mass of the nitrogen dioxide is 10.53 g.

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