Дано
m(C3H8) = 440 g
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V(возд)-?
C3H8+5O2-->3CO2+4H2O
M(C3H8) = 44 g/mol
n(C3H8) = m/M = 440/ 44 = 10 mol
n(C3H8) = 5n(O2)
n(O2) = 5*10 = 50 mol
V(O2) = n*Vm = 10*22.4 = 224 L
V(возд) = 224 * 100% / 21% = 1066.7 L ≈1.1 m3