Mixtures and Solutions - Solvation: Ionic and Molecular Compounds

Question 1

solution formation

Answer 1

• hydration of ionic compounds
• hydration of other water soluble molecules
• solvation is the term used when solvent is not water

Question 2

factors influencing solubility

Answer 2

• nature of solute and solvent

- pressure: no effect on solids and liquids, but does effect gases in liquids

Question 3

factor influencing rate of dissolution

Answer 3

• particle size of solid solutes: increased surface area enhances ease of solubilization
• stirring: no effect on solubility, but does effect rate or ease of solubilization
• temperature

Question 4

electrolytes

Answer 4

• solutions that conduct electricity; contain ions
• strong electrolytes complete dissociate in water; forms ions in solution
• ionic compounds are strong electrolytes
• NaCl(s) –> Na+ + Cl-

Question 5

nonelectrolytes

Answer 5

• do not conduct electricity
• most molecular compounds are nonelectrolytes; do not dissociate
• some molecular compounds will undergo ionization with water to form ions (tend to be weak electrolytes)

Question 6

nature of solute particles

Answer 6

• ionic compounds yield ions in solution

- nonelectrolyte molecular compounds are molecules in solution

Question 7

HBr _____ ions in an aqueous solution

Answer 7

• forms

Question 8

CH3CHOHCH3 _____ an electrolyte in solution

Answer 8

• is not

Question 9

KCl ____ an electrolyte in solution

Answer 9

• is

Question 10

CH3OH _____ ions in an aqueous solution

Answer 10

• does not form

Question 11

Li2SO4 ____ an electrolyte in solution

Answer 11

• is