Author Question: Henry's Law constants for aqueous solutions at 25 C are 8.20 10-7m/mmHg for N2 and 1.62 10-6m/mmHg ... (Read 151 times)

clmills979 · **on:** Jul 8, 2021

Question 1

Given that the vapor pressure of pure n-hexane and pure n-heptane at 25 °C are 151.4 mmHg and 45.62 mmHg respectively, calculate the total vapor pressure above a solution containing only n-hexane and n-heptane in which the mole fraction of n-hexane is 0.600.
◦ 87.9 mmHg
◦ 197 mmHg
◦ 106 mmHg
◦ 109 mmHg
◦ 170 mmHg

Question 2

Henry's Law constants for aqueous solutions at 25 °C are 8.20 × 10^-7m/mmHg for N₂ and 1.62 × 10^-6m/mmHg for O₂. Determine the solubility of nitrogen in water under an atmospheric pressure of 760 mmHg, assuming that air is 80% N₂ and 20% O₂.
◦ 6.23 × 10^-4m
◦ 7.79 × 10^-4m
◦ 4.99 × 10^-4m
◦ 1.25 × 10^-4m
◦ 6.16 × 10^-3m

jordangronback · **Reply #1 on:** Jul 8, 2021

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