Hydrogen chloride, HCl, is a gas at room temperature. Would you expect this material to be very soluble or not very soluble in water?

A. It is not very soluble because as a gas with low density, it floats to the surface of the water and then into the surrounding atmosphere.
B. It is not very soluble because it is a gas, and all gases have very low solubility in water at room temperature.
C. HCl is very soluble in water because it is such a small molecule, there is little electrical attraction to other HCl molecules.
D. HCl is very soluble in water by virtue of the dipole-dipole attractions occurring between the HCl and H2O molecules.


Answer: D

Environmental & Atmospheric Sciences

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