Solvation - Ionic and Molecular Compounds

Question 1

What is Solution Formation?

Answer 1

The hydration of ionic compounds, the hydration of other water soluble molecules. Solvation is the term used when solvent is not water.

Question 2

What Factors Influence Solubility?

Answer 2

Nature of solute and solvent (like dissolves like). Pressure - no effects on solids and liquids, but does effect gases in liquids.

Question 3

What Factors influence rate of dissolution?

Answer 3

Particle size of solid solutes - increases surface area enhances ease of solubilization.

Stirring - no effect on solubility, but does effect rate or ease of solubilization.

Temperature.

Question 4

What are Electrolytes?

Answer 4

Solutions that conduct electricity; contain ions.

• Strong electrolytres complete dissociate in water; form ions in solution.
• Ionic compounds are strong electrolytes.

NaCl(s) —> Na+ + Cl-.

• nonelectrolytes - do not conduct electricity
• most molecular compounds are nonelectrolytes; do not dissociate.