We’re being asked to determine the Henry’s law constant for nitrogen gas at 25 ˚C. Recall that the solubility of a gas is given by Henry’s law:
where Sgas = solubility of the gas (in mol/L or M), kH = Henry’s law constant for the gas, Pgas = partial pressure of the gas.
The solution of nitrogen gas at 25°C and a nitrogen pressure of 522 mmHg is 4.7 x 10 -4 mol/L. What is the value of Henry's Law constant in mol/L•atm?
A. 6.8 x 10-4 mol/L • atm
B. 9.0 x 10-7 mol/L • atm
C. 1.5 x 10-4 mol/L • atm
D. 3.2 x 10-4 mol/L • atm
E. 4.7 x 10-4 mol/L • atm
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