Chapter 15

Question 1

What are the 7 strong acids?

Answer 1

1. HCl
2. Hbr
3. HI
4. HClO4
5. HClO3
6. HNO3
7. H2SO4 (strongest)

Question 2

strong electrolytes

Answer 2

dissolve in water, completely separate; complete ionization; soluble ionic compounds

Question 3

weak electrolytes

Answer 3

partially separate (partial ionization), insoluble ionic compounds

Question 4

when you establish/reach dynamic equilibrium…..

Answer 4

……there will be no more observable (i.e. bubbles, colors, etc.) or measurable changes

Question 5

If K»>10 then……

Answer 5

..product formation is favored aka to the right

Question 6

if K«<1 then…..

Answer 6

..reactant formation is favored aka to the left

Question 7

if 10>K>1 then….

Answer 7

…reactant and product form is comparable

Question 8

Le Chatlier’s Principle

Answer 8

if a stress is induced or applied to a system at equilibrium then the system will adjust itself in such a way to offset the stress

Question 9

If Q=K

Answer 9

…..rxn @ equilibrium

Question 10

If Q

Answer 10

….rxn not @ equilibrium, “pre-equilib’

reactant –> prod (Right)

Question 11

If Q>K

Answer 11

…rxn not @ equilib. “post-equilib”

prod –> react (Left)

Question 12

What changes K? What doesn’t change K?

Answer 12

change = temp

no change = conc and pressure

Question 13

Which are more stable: strong acids or weak acids?

Answer 13

Strong acids

Question 14

Which is more reactive: strong acid or weak acid?

Answer 14

Weak acid

Question 15

Kp -> Kc

Answer 15

Kp=Kc(RT)^(delta)n

Question 16

lower K; higher reactant @ equilib

Answer 16

rxn is heavy on react. side @ equilib

Question 17

higher K; higher product @ equilib

Answer 17

rxn is heavy on prod side @ equilib

Question 18

heat favors what type of rxns?

Answer 18

endo

Question 19

cooling favors what type of rxns?

Answer 19

exo