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The Henry's law constant for H2 is 8.1×10−4 Matm at 25∘C. What pressure of hydrogen is needed to maintain a H2 concentration of 0.42 M?

The Henrys law constant for H2 is 81104 Matm at 25C What pressure of hydrogen is needed to maintain a H2 concentration of 042 M class=

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Eduard22sly

The pressure of hydrogen needed to maintain a H₂ concentration of 0.42 M is 518.5 atm

Henry's law

This states that the solubility / concentration of a gas in liquids at constant temperature is proportional to its pressure. Mathematically, it can be expressed as

S = KP

Where

  • S is the solubility / concentration
  • K is the Henry's constant
  • P is the pressure

How to determine the pressure

  • Henry's constant (K) =  8.1×10¯⁴ M/atm
  • Concentration (S) = 0.42 M
  • Pressure (P) =?

P = S / K

P = 0.42 / 8.1×10¯⁴

P = 518.5 atm

Learn more about solubility:

https://brainly.com/question/4530083

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