Unit 4

Question 1

Solvent

Answer 1

Matrix in which something is being dissolved

Question 2

Solute

Answer 2

What is being dissolved

Question 3

Like dissolves like

Answer 3

Polar substances dissolve polar molecules. Non polar substances dissolve non polar molecules

Question 4

Missable

Answer 4

Can mix

Question 5

Amissable

Answer 5

Can;t mix (ie. salad dressing)

Question 6

Heterogenius

Answer 6

More then one phase is visible

Question 7

Homogenius

Answer 7

One visible phase

Question 8

Law of elements

Answer 8

Compounds always contain elements in fixed ratios

Question 9

Unsaturated

Answer 9

Less solute then the solution can hold

Question 10

Saturated

Answer 10

Holds as much solute as it can

Question 11

Supersaturated

Answer 11

Solution holds more solar then is normally can because of temperature and pressure

Question 12

Concentration

Answer 12

n=c/v

Question 13

Dilutions

Answer 13

c1v1=c2v2

Question 14

Collision theory

Answer 14

All particles are moving in space, bonds are broken and made through collisions between particles. To be effective, collisions have to hit with enough energy in the correct orientation

Question 15

%v/v

Answer 15

v solute/ v solution X100

Question 16

%w/v

Answer 16

m solute/ volume solution X100

Question 17

%w/w

Answer 17

m solute/ m solution X100

Question 18

cppm

Answer 18

m solute/ m solution X 10^6

Question 19

ppb

Answer 19

10^9

Question 20

ppt

Answer 20

10^12

Question 21

Strong acids

Answer 21

Dissociate 100%

Question 22

Weak acids

Answer 22

Dissociates less

Question 23

PH

Answer 23

-log[h30]

Question 24

[H3O]

Answer 24

10^-PH

Question 25

Acids

Answer 25

Taste sour and conduct electricity

Question 26

Bases

Answer 26

Feel slippery, taste bitter,

Question 27

Acids that do not have oxygen

Answer 27

Hydro_______ic acid

Question 28

Arrhenius theory

Answer 28

Discovered ions and hydronium. Fails to explain the pH of salts and the pH of NH3

Question 29

Bronsted lowry

Answer 29

Said bases donate hydrogen atoms and acids accept hydrogen atoms