Unit 3: Solubility

Question 1

What is the Ksp expression for: AB

Answer 1

x²

Question 2

What is the Ksp expression for: A₂B or AB₂

Answer 2

4x³

Question 3

What is the Ksp expression for: A₃B or AB₃

Answer 3

27x⁴

Question 4

What is the Ksp expression for: A₂B₃ or A₃B₂

Answer 4

108x⁵

Question 5

Thermodynamics

Answer 5

energy of a chemical reaction

Question 6

Kinetics

Answer 6

rate of the reaction

Question 7

Factors that affect the rate of a chemical equation

Answer 7

medium/nature of reactants, concentration, temperature, catalyst

Question 8

units for Rate

Answer 8

M*s⁻¹

Question 9

Units for K (zero order)

Answer 9

M*s⁻¹

Question 10

Units for K (first order)

Answer 10

s⁻¹

Question 11

Units for K (second order)

Answer 11

M⁻¹*s⁻¹

Question 12

Units for K (3rd order)

Answer 12

M⁻²*s⁻¹

Question 13

Units for K (4th order)

Answer 13

M⁻³*s⁻¹

Question 14

First order integrated rate law

Answer 14

ln[A] = ln[A]₀ - kt

Question 15

Zero order integrated rate law

Answer 15

[A] =[A]₀ - kt

Question 16

Second order integrated rate law

Answer 16

1/[A] = (1/[A]₀) + kt

Question 17

How does the graph of a first order integrated rate law look?

Answer 17

a straight line with a slope of -k and an intercept of [A]₀

(negative slope)

Question 18

How does the graph of a zero order integrated rate law look?

Answer 18

a straight plot with a negative slope

Question 19

How does the graph of a second order integrated rate law look?

Answer 19

straight line with a positive slope

Question 20

First order half life equation

Answer 20

t1/2 = ln2/k

Question 21

Zero order half life equation

Answer 21

t1/2 = [A]₀ / 2k

Question 22

Second order half life equation

Answer 22

t1/2 = 1 / (k[A]₀)

Question 23

zero order (concentration and half-life relation)

Answer 23

as concentration decreases half-life also decreases

Question 24

first order (concentration and half-life relation)

Answer 24

as concentration decreases, half-life remains constant

Question 25

second order (concentration and half-life relation)

Answer 25

as concentration decreases, half-life increases

Question 26

What order equation is radioactive decay?

Answer 26

first order

Question 27

Unimolecular reaction

Answer 27

One molecule reacting by itself A → D

Question 28

Bimolecular step

Answer 28

Two molecules reacting A + B → D

Question 29

What step are unimolecular steps?

Answer 29

First order

Question 30

What step are bimolecular steps?

Answer 30

2nd order, 1st order with respect to each of the molecules

Question 31

Slow step

Answer 31

Rate determining step Dictates the speed of the overall reaction

Question 32

Reaction Coordinate

Answer 32

path that links the reaction molecules and product molecules

Question 33

Transition state

Answer 33

the high energy point between two minima along the reaction coordinate