Answer:
elements
because There's no fourmals of 2 subsances that can make up an element
Answer is: total pressure is 108.96 mmHg.
p(n-hexane) = 151.4 mmHg; pressure of n-hexane.
p(n-heptane) = 45.62 mmHg.
χ(n-hexane) = 0.600; mole fraction.
χ(n-heptane) = 1 - 0.6 = 0.400.
Using Raoult's Law: <span>
p(total) =
p(n-hexane) · χ(n-hexane) + p(n-heptane) · χ(n-heptane).
</span>p(total) = 151.4 mmHg · 0.6 + 45.32 mmHg · 0.4.
p(total) = 108.96 mmHg.
The mass of air is
43.3 kg.
V = lwh = 3.63 m × 3.39 m × 2.97 m = 36.55 m³
V = 36.55 m³ ×

×

= 3.655 × 10⁷ mL
Mass of air = 3.655 × 10⁷ mL ×

= 43 300 g = 43.3 kg