Question

Examine the Henry's law constants in the table below.

Table. Henry's Law Constants for Several Gases in Water at 25 ∘C

Gas	kH (M/atm)
O2	1.3×10−3
N2	6.1×10−4
CO2	3.4×10−2
H2S	1.0×10−1
Ne	34.5×10−4

Why is the constant for hydrogen sulfide bigger than the others?

Why is the constant for hydrogen sulfide bigger than the others?

	Hydrogen sulfide is the only compound on the list that is polar, so we would expect its solubility in water to be greater than those of the other gases.
	The shape of a hydrogen sulfide molecule resembles that of a water molecule, so we would expect its solubility in water to be greater than those of the other gases.
	Hydrogen sulfide decomposes when mixed with water.
	Hydrogen sulfide molecules are bigger than molecules of other gases on the list. That is why the interaction between H2S and water molecules is very strong.