Chem Exam 2

Question 1

Ion dipole

Answer 1

attraction between charge on an ion and end of dipole with opposite partial charge

Question 2

Hydrogen bonding

Answer 2

attraction between δ+H atoms attached to a high electronegative atom (N, O, F) and a lone pair on another atom

Question 3

Dipole-Dipole

Answer 3

attraction between opposite partially charged ends and polar molecules

Question 4

Dipole-induced dipole

Answer 4

somethings polar molecules can induce a dipole in other molecules

Question 5

induced dipole- induced dipole (London Dispersion)

Answer 5

attractiion between an instantaneous dipole and a dipole induced in a neighboring atom or molecule

Question 6

liquid with strong IM forces will…

Answer 6

not evaporate easily, has lower vapor pressure

Question 7

liquid with weak IM forces

Answer 7

evaporates more easily, has higher vapor pressure

Question 8

miscible

Answer 8

solutions where a liquid dissolves completely into another liquid

Question 9

immiscible

Answer 9

incapable of mixing

Question 10

Properties of solution depend on…

Answer 10

the amount of solute
properties include: boiling point elevation, freezing point depression, osmotic pressure

Question 11

Boiling point elevation

Answer 11

when solute is added to solvent, the boiling point of the solution is greater than the boiling point if pure solvent

Question 12

Vant Hoff Factor (i)

Answer 12

particles in solution
ionic = # of ions formed (solute “falls apart” in ions)
non-ionic: i = 1