Question

What is the solubility of helium (in units of grams per liter) in water at 25 C, when the He gas over the solution has a partial pressure of 0.284 atm? ky for He at 25 °C is 3.26x10 molL atm

Answer 1

9.2584 mol/L is the solubility of helium in water at 25 °C.

Step-by-step explanation:

Henry's law states that the amount of gas dissolved or molar solubility of gas is directly proportional to the partial pressure of the liquid.

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

`C_(He)=K_H* p_(H_2O)`

where,

`K_H` = Henry's constant =
`3.26* 10 mol/L atm`

`p_(He)` = partial pressure of carbonated drink = 0.284 atm

Putting values in above equation, we get :

`C_(He)=3.26* 10 mol/L atm* 0.284 atm=9.2584 mol/L`

9.2584 mol/L is the solubility of helium in water at 25 °C.