Exam 3

Question 1

What are the 7 strong acids

Answer 1

HCL
HBr
HI
H2SO4
HNO3
HCLO4
HCLO3

Question 2

Strong acids K value is greater or less than 1

Answer 2

K&raquo_space; 1

Question 3

Weak acids K value is greater or less than 1

Answer 3

K < 1

Question 4

Strong bases K value is greater or less than 1

Answer 4

K&raquo_space; 1

Question 5

Weak bases K value is greater or less than 1

Answer 5

K < 1

Question 6

Arrhenius acids do what

Answer 6

Accept a pair of electrons

Question 7

Arrhenius bases do what

Answer 7

Donate a pair of electrons

Question 8

Bronsted lowry acids do what

Answer 8

Donate one or more H+

Question 9

Bronsted lowry bases do what

Answer 9

Accept one or more H+

Question 10

Relating to buffers

WA + CB =

WB + CA =

SA + CB =

SB + CA =

Answer 10

Buffer
Buffer
No buffer
No buffer

Question 11

Strong bases can be determined by

Answer 11

Na column with OH

Question 12

What is the formula for buffers

Answer 12

pH = pKa + log( BASE / ACID )

pOH = pKa + log( ACID / BASE )

Question 13

What is the formula for working out Ka or Kb using KW

Answer 13

KW = (Ka) (Kb)

Question 14

KW =

Answer 14

1.0 x 10 ^-14

Question 15

Equiv problems require

Answer 15

WA = OH

LR problem

Question 16

Autoinonisation of water is represented by

What does it mean

Answer 16

H2O H+ + OH-

Water dissociates a tiny little bit

Question 17

pH = pOH

pH > pOH

pH < pOH

Answer 17

Neutral

BASIC = MORE OH-

ACIDIC = MORE H+

Question 18

% dissociated formula

Answer 18

[H+] / initial x 100

Question 19

Hydrolysis formula can be used when there is

Example

Answer 19

CB or CA

A- + H2O HA + OH-

F- + H2O HF + OH-

or

B+ + H2O BOH + H+

NH4+ + H2O NH4OH + H+

Question 20

pH is controlled by what species

unless

Answer 20

Strong acids and bases

UNLESS
Strong acid is very small molarity

Question 21

If you have a WA + SB or WB + SA can you form a buffer

What problem do you have to do

Answer 21

Yes = but if SB or SA is in small molarity

LR problem

Question 22

Units of molar solubility are

Answer 22

Mol / L

ALSO WRITTEN AS molarity = M

Question 23

Units of solubility product

Answer 23

g / L

Question 24

How do you convert molar solubility into solubility product

Answer 24

Multiple by MW

Question 25

QSP < KSP

QSP > KSP

QSP = KSP

Answer 25

NO SOLID FORM

SOLID FORM

Saturated solution

Question 26

During a “will a solid form” question, what can we use to figure out if the answer is yes

Answer 26

If a KSP is given

Then use solubility table to check

Question 27

When you are mixing two solutions and seeing if a percipitate forms what do you first do

Answer 27

Correct for new volume

Use M1V1 = M2V2

Question 28

How do you decide which one percipitates first between two solids forming in a solution

Answer 28

Lowest QSP value

Question 29

Acid insoluble involve substances that

Answer 29

Dissiociate and form STRONG ACIDS and keep dissiocating

Question 30

Water SOLUBLE involve substances that

Answer 30

Dissociate in water

Question 31

Acid SOLUBLE involves substances that

Answer 31

Form WA or H2O

Question 32

Are buffer problems considered reactions

Answer 32

NO