chem exam 1

Question 1

name bond strength from weakest to strongest

Answer 1

dispersive
dipole-dipole
h-bonds
ion-ion

Question 2

how do you break a tie between IMF strenght

Answer 2

more polar=more imf strength

Question 3

what molecules can h bond to make an h-bond

Answer 3

F,O,N

Question 4

viscosity

Answer 4

the thickness of a liquid/flow

Question 5

how do imfs effect viscosity

Answer 5

stronger imfs=more viscous/ moves slower

Question 6

how do imfs effect surface tension

Answer 6

stronger= more surface tension

Question 7

how do imfs effect vapor pressure

Answer 7

stronger imfs= decreased vapor pressure

Question 8

how do imfs effect boiling point

Answer 8

stronger imf= higher boiling points

Question 9

how do imfs effect freezing point

Answer 9

stronger imf= lower freezing point

Question 10

how can imfs be overcome

Answer 10

temperature

Question 11

miscible

Answer 11

unlimited solubility

Question 12

nonelectrolytes

Answer 12

substances that do NOT dissociate when dissolved

Question 13

electrolytes

Answer 13

substances that do dissociate when dissolved

Question 14

strong electrolyte

Answer 14

only ions and fully dissociate

Question 15

colligative properties

Answer 15

depend on only the number of solute particles and not the identities

Question 16

what are colligative properties dependent on

Answer 16

vant hoff factor

Question 17

how is vapor pressure effected by colligative properties

Answer 17

vapor pressure decreases as solute is added

Question 18

what is solubility dependent on

Answer 18

temp and pressure

Question 19

what is the vant hoff factor for nonelectrolytes

Answer 19

1

Question 20

how do colligative properties effect freezing point

Answer 20

solutions have lower freezing points

Question 21

how do colligative properties effect boiling points

Answer 21

higher boiling point in solutions