Please Its due today...
Helium concentration in a water sample collected at 30 degrees C was measured at 9.25 X 10^-4 mols/L. You found the Henry's law constant for Helium in water at 30 degrees C is 3.70 X 10^-4 M/atm. What is the partial pressure of He?

Question

Please Its due today...
Helium concentration in a water sample collected at 30 degrees C was measured at 9.25 X 10^-4 mols/L. You found the Henry's law constant for Helium in water at 30 degrees C is 3.70 X 10^-4 M/atm. What is the partial pressure of He?

anonymous · Answer

$$p [atm] = c (M) \div  k (M/atm) $$

You just need to divide the concentration by the constant, final units should be a pressure (atm).

anonymous · Answer

Okay thanks