How do ionic and molecular compounds dissolve?

Answer 1

Both dissolve because they are able to form more stable bonds or associations with the solvent molecules than they have with the solid molecules, though the details of their dissolution are different.

I have not discussed entropy here, which also plays a part; depending on how deep you want to go, but if we start with ionic solids, the electrostatic attraction between the ions is what holds them together. When they dissolve, the ions form bonds with the solvent molecules, and the energy released when this occurs is more than the energy needed to overcome the electrostatic attractions in the ionic lattice.

When it comes to molecular solids, the force that needs to be overcome is the intemolecular forces that exist between the molecules; if these forces are greater than those that exist between the molecules of the solute when it is solid, dissolving will occur. Entropy also plays a part in this process, but I have left it out for the sake of simplicity.

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Answer 2

When dissolved in a solvent, ionic compounds separate into their constituent ions, whereas molecular compounds dissolve through hydrogen bonding, dispersion, or dipole-dipole interactions, contingent on their molecular structure and the solvent in which they are dissolved.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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