F
Fathimath
18 Apr 19

Pls help

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T
Theresa

PV = nRT V = 10 litre T = 27ºC = 300K
nHe = 0.4/4 = 0.1
 N2 = 1.4/ 28= 0.05, 
O2 = 1.6/32= 0.05
Total no. of moles = 0.1 + 0.05 + 0.05 = 0.2
PV = nRT , P× 10 = 0.2 × 0.082 × 300 = 4.92; P = 0.492 atm

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