Question

1. what types of r groups would compete with salt ions for water of solvation?

Explanation:

Solvation by water involves interactions between solute particles and polar water molecules. R groups that can form hydrogen bonds, have full or partial charges (polar groups), will compete with salt ions (which are charged and rely on ion-dipole interactions with water) for water molecules for solvation.

Answer:

Polar and charged R groups (such as hydroxyl (-OH), carboxyl (-COOH), amino (-NH₂), and charged ionic R groups like -COO⁻ or -NH₃⁺) would compete with salt ions for water of solvation, as they can form favorable interactions (hydrogen bonds, ion-dipole interactions) with polar water molecules, similar to how salt ions interact with water.