Calculate the volume of air, which contains 354 g of oxygen

Calculate the volume of air, which contains 354 g of oxygen

 

 

Calculate the volume of air, which contains 354 g of oxygen.

Assume that air consists of 21% by volume of oxygen.

(Ar(O) = 16, t = 0 °C, p = 101.3 kPa)

 

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산소의 몰수를 계산하면,

354 g / (32 g/mol) = 11.0625 mol O2

 

 

1 atm = 101.325 kPa 이므로,

101.3 kPa ≒ 1 atm

 

 

PV = nRT 이므로,

( 식 설명 https://ywpop.tistory.com/3097 )

 

산소의 부피를 계산하면,

V = nRT / P

= (11.0625) (0.08206) (273.15+0) / (1)

= 247.96 L O2

 

 

공기의 부피를 계산하면,

247.96 L / (21/100) = 1180.76 L

 

 

답: 1181 L