2/28 Solutions

Question 1

what is a solution

Answer 1

a homogenous mixture of 2 or more compounds

Question 2

when is something said to be soluble

Answer 2

when one substance (solute) dissolves in another (solvent)

Question 3

what is a solute

Answer 3

component being dissolved (mixed) into the solvent

Question 4

major vs minor component

Answer 4

major is solvent and minor is solute

Question 5

what is solubility

Answer 5

max amount of solute that can be dissolved in a given amount of solvent

Question 6

is there usually a limit to solubility of one substance in another

Answer 6

yes

Question 7

are gases always soluble in each other

Answer 7

yes

Question 8

miscible

Answer 8

two liquids that are mutually soluble

Question 8

what are the three steps when mixing a solution

Answer 8

1)separate solute into constituent particles
2) separate the solvent particles from each other to make room for the solute particles
3)mix solute particles with solvent particles

Question 8

what causes solubility of one substance in another to vary

Answer 8

temp and pressure

Question 9

is enthalpy change of ionic bonds and hydrogen bonds endo or exothermic

Answer 9

endothermic

Question 10

is change in ion dipole forces exo or endo thermic

Answer 10

exothermic

Question 11

molar heat of solution

Answer 11

net energy flows resulting from the dissolution of a solid in water

Question 12

break IMF =

Answer 12

endothermic

Question 13

forming IMF is

Answer 13

exothermic

Question 14

if it is soluble is it spontaneous or non spontaneous

Answer 14

spontaneous

Question 15

solubility limit

Answer 15

max amount of soluble into solvent

Question 16

saturated

Answer 16

Solution that has the solute and solvent in dynamic equilibrium (on the limit)

Question 17

what happens if you had more solute to saturated solution

Answer 17

it wont dissolve

Question 18

what does saturation coentration depend on

Answer 18

temp and pressure

Question 19

unsaturated

Answer 19

solution with less solute than saturation (under limit)

Question 20

what happens if you add more solute to unsaturated solution

Answer 20

it will dissolve

Question 21

supersaturated

Answer 21

solution that has more solute than saturation (above limit)

Question 22

what does solubility chart line indicate

Answer 22

limit

Question 23

insoluble

Answer 23

one substance that does not dissolve in another

Question 24

soluble

Answer 24

when one substance dissolves in another

Question 25

what does solubility of one substance in another depend on

Answer 25

-natures tendency towards mixing -types of IM attractive forces

Question 26

what are the types of IMF

Answer 26

-non polar london dispersion -polar (dipole-dipole) -hydrogen bond

Question 27

what is the strongest IMF

Answer 27

hydrogen bonding

Question 28

what are the elements that can form hydrogen bonding

Answer 28

O, N, F

Question 29

what do energy change in formation of solutions involve

Answer 29

difference in attractive forces between particles

Question 30

Ion dipole

Answer 30

another IMF because ion is like dipole (like dissolves like)

Question 31

what is the most common non polar solvent

Answer 31

hexane (C6H12)

Question 32

is ion dipole stronger than hydrogen bonding

Answer 32

yes