alexandrajuare1372 alexandrajuare1372
  • 24-05-2019
  • Chemistry
contestada

How many moles of nitrogen we have at a temperature of 30 ?C, a pressure of 4.0 atm, and a volume of 4000.ML?

Respuesta :

superman1987
superman1987 superman1987
  • 04-06-2019

Answer:

0.643 mol.

Explanation:

  • We can use the general law of ideal gas: PV = nRT.

where, P is the pressure of the gas in atm (P = 4.0 atm).  

V is the volume of the gas in L (V = 4000 mL = 4.0 L).  

n is the no. of moles of the gas in mol (n = ??? mol).

R is the general gas constant (R = 0.0821 L.atm/mol.K),  

T is the temperature of the gas in K (T = 30ºC + 273 = 303 K).

∴ n = PV/RT = (4.0 atm)(4.0 L)/(0.0821 L.atm/mol.K)(303 K) = 0.643 mol.

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