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If the solubility of a gas in water is 1.22 g/L at 2.75 atm, what is its solubility (in g/L) at 1.0 atm?

User Ozgur Oz
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Answer:

0.44 g/L.

Step-by-step explanation:

  • This problem is an application on Henry's law.
  • Henry's law states that the solubility of a gas in a liquid is directly proportional to its partial pressure of the gas above the liquid.
  • Solubility of the gas ∝ partial pressure
  • If we have different solubility at different pressures, we can express Henry's law as:
  • S₁/P₁ = S₂/P₂,
  • S₁ = 1.22 g/L and P₁ = 2.75 atm
  • S₂ = ??? g/L and P₂ = 1.0 atm
  • So, The solubility of the gas at 1.0 atm (S₂) = S₁.P₂/P₁ = (1.22 g/L x 1.0 atm) / (2.75 atm) = 0.44 g/L.
User Ironkey
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