Problem 5.1: Henrys Law governs gas solubility How does it

From Chapter 5 Problem Set. Level 1: Conceptual Mastery.

Question

Henry’s Law governs gas solubility. How does it differ from the way ionic solids dissolve? Use the language of “pushed” versus “pulled.” (Refer to Chapter 3 if needed).

Answer

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Ionic solids are pulled into solution. Water’s polarity dismantles the crystal lattice and hydration shells stabilize the freed ions. Gases are pushed into solution by pressure. They occupy gaps in the Hydrogen-Bond Network but are not electrostatically stabilized. When pressure drops or temperature rises, gases leave because nothing is holding them in place.