Problem: The Henry’s law constant for CO2 is 3.4 × 10−2 M/atm at 25 °C. What pressure of carbon dioxide is needed to maintain a CO2 concentration of 0.10 M in a can of lemon-lime soda?

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We’re being asked to determine the pressure of CO2 at 25 ˚C to maintain the CO2 concentration at 0.10 M in a can of lemon-lime soda.


Recall that the solubility of a gas is given by Henry’s law:


Sgas=kHPgas


where Sgas = solubility of the gas (in mol/L or M), kH = Henry’s law constant for the gas, Pgas = partial pressure of the gas.


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The Henry’s law constant for CO2 is 3.4 × 10−2 M/atm at 25 °C. What pressure of carbon dioxide is needed to maintain a CO2 concentration of 0.10 M in a can of lemon-lime soda?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Henry's Law concept. You can view video lessons to learn Henry's Law. Or if you need more Henry's Law practice, you can also practice Henry's Law practice problems.

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Our data indicates that this problem or a close variation was asked in Chemistry - OpenStax 2015th Edition. You can also practice Chemistry - OpenStax 2015th Edition practice problems.