If gas is bubbled through water at 303 K, the number of millimoles of gas that dissolve in 1 litre of water is (Nearest integer)

(Given: Henry's Law constant for at 303 K is 46.82 k bar and parti

Question

If  gas is bubbled through water at 303 K, the number of millimoles of  gas that dissolve in 1 litre of water is  (Nearest integer)

(Given: Henry's Law constant for  at 303 K is 46.82 k bar and partial pressure of  = 0.920 bar)

(Assume solubility of  in water is too small, nearly negligible)

Canvas Classes · Accepted Answer

Strategy:
 Apply Henry's Law () to find the mole fraction of  in water. Then, convert this mole fraction into moles in 1 liter of water by assuming a standard molar volume for the solvent.

Step 1: Calculate the mole fraction of } \ce{O2} 	ext{ ()
- 
-

Step 2: Calculate moles of water in 1 liter
Density of water , Molar mass = .

Step 3: Determine millimoles of dissolved } \ce{O2} 	ext{ ()
For very dilute solutions: .

Rounding to the nearest integer: 1.

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