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The release of volatile organic compounds into the atmosphere is regulated to limit ozone formation. In a laboratory simulation, 5% of the ethanol in a liquid detergent is released. Thus, a "down-the-drain" factor of 0.05 is used to estimate ethanol emissions from the detergent. The k _H values for ethanol and 2-butoxyethanol (C₄H₉OCH₂CH₂OH) are 5x10⁻⁶ atm m³ /mol and 1.6x10⁻⁶ atm . m³/mol, respectively. (b) What is the kH for ethanol in units of L . atm/mol?

Respuesta :

The Henry's law constant for ethanol was  221 ± 4 M/atm at 22 °C .

What is  Henry's law constant ?

In physical chemistry, Henry's law is a gas law that states that the amount of dissolved gas in a liquid is proportional to its partial pressure above the liquid. The proportionality factor is called Henry's law constant. It was formulated by the English chemist William Henry, who studied the topic in the early 19th century.

Henry's law shows that the concentration of a solute gas in a solution is directly proportional to the partial pressure of the gas over the solution. P = KHC where:P is the partial pressure of the gas above the solution. KH is the Henry's law constant for the solution.

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