Home
Class 12
CHEMISTRY
Mole fracton of helium in a saturated so...

Mole fracton of helium in a saturated solution at `20^(@)C is 1.2xx10^(-6)`. Find out the pressure of helium above the solution. Given that at `20^(@)C`, Henry's Law Constat `(k_(H))=144.97` K bar.

Text Solution

Verified by Experts

The correct Answer is:
0.174 bar
`rho_(He)=x_(He)xxK_(H)1.2xx10^(6)xx(144.97xx10^(3)"bar")=0.174 "bar"`
Promotional Banner

Similar Questions

Explore conceptually related problems

The mole fraction of He gas in a saturated solution at 20^(@)C is 1.25 xx 10^(-6) . Calculate the pressure of He gas above the solution . ( K_(H) of He at 20^(@)C = 144.98 k bar)

What is the pH of a saturated solution of Cu(OH)_(2) ? (K_(sp)=2.6xx10^(-19)

What is the molarity of F^(-) ions in a saturated solution of BaF_(2) ? (K_(sp)=1.0xx10^(-6))

Calcium hydroxide is soluble in water with a K_(sp) of 1.3xx10^(-6) . What is the pH of a saturated solution of calcium hydroxide at 25^(@) C?

The Henry's law constant for oxygen gas in water at 25^(@)C is 1.3xx10^(-3) M atm^(-1) . What is the partial pressure of O_(2) above a solution at 25^(@) C with an O_(2) concetration of 2.3xx10^(-4) M at equilibrium?

K_(sp) of AgCl in water at 25^(@)C is 1.8xx10^(-10) . If 10^(-5) mole of Ag^(+) ions are added to this solution. K_(sp) will be: