The Henry's law constant for nitrogen in water at 25oC is 6.10 x 10-4 M/atm. What is the concentration (molarity) of nitrogen in water at a pressure of 23.6 atm?

Respuesta :

Answer: The concentration of nitrogen gas is 0.0144 M

Explanation:

To calculate the molar solubility, we use the equation given by Henry's law, which is:

[tex]C_{N_2}=K_H\times p_{N_2}[/tex]

where,

[tex]K_H[/tex] = Henry's constant = [tex]6.10\times 10^{-4}mol/L.atm[/tex]

[tex]C_{N_2}[/tex] = molar solubility of nitrogen gas

[tex]p_{N_2}[/tex] = partial pressure of nitrogen gas = 23.6 atm

Putting values in above equation, we get:

[tex]C_{N_2}=6.10\times 10^{-4}mol/L.atm\times 23.6atm\\\\C_{N_2}=0.0144mol/L[/tex]

Hence, the concentration of nitrogen gas is 0.0144 M