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CHEM 1001 > Chapter 14-Chemical Equilibrum > Flashcards

Chapter 14-Chemical Equilibrum Flashcards

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1
Q

What does it mean when K>1

A
  • products are favoured

- reaction lies to the right

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2
Q

What does it mean when K<1?

A
  • reactants are favoured

- reaction lies to the left

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3
Q

What does it mean when K=1

A
  • neither reaction is favoured

- forward reaction proceeds about halfway to completion

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4
Q

Q

A
  • reaction proceeds to the right

- products need to be formed

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5
Q

what doeQ>K mean?

A
  • reaction proceeds to the left

- reactants need to be formed

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6
Q

Q=K

A

-reaction is at equilibrum

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7
Q

Increasing the amount of reactant (Q

A

-causes a shift to the right

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8
Q

Decreasing the amount of reactant (Q>K)

A

-causes a shift to the left

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9
Q

Increasing the amount of product (Q>K)

A
  • causes a shift to the right
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10
Q

Decreasing the amount of product (Q

A

-causes a shift to the right

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11
Q

Decrease in volume, increase in pressure

A
  • shift to the side with fewer moles
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12
Q

Increase in volume, decrease in pressure

A
  • shift to the side with more moles
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13
Q

Increasing the temperature of an exothermic reaction

A
  • reaction shifts left

- decreases K

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14
Q

Decreasing the temperature of an exothermic reaction

A
  • reaction shifts right

- increase K

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15
Q

increasing temp of an endothermic reaction

A
  • reaction shifts left

- increases K

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16
Q

decreasing temp of an endothermic reaction

A
  • shift left

- decreases K

17
Q

Five Strong Acids

A

HCI, HBR, HI, HNO3, HClO4, H2SO4

18
Q

Five Strong Bases

A

Li, Na, K, Ca, Ba, Sr

19
Q

How to find pH of strong acid?

A
  • no ICE Table jsut plug it into pH equation
20
Q

How to find pH of a strong base?

A

-no need for ICE Table, just plut into poH= -log(OH)

21
Q

How to find pH of a weak acid?

A
  • ICE Table
22
Q

how to find pH of weak base?

A
  • ICE Table, use Kb
23
Q

how to find pH of one strong+one weak acid?

A
  • take the H30+ of the strong acid
24
Q

how to find pH of two weak acids?

A
  • take the H30+ of the acid with the higher ka, only applicable if Ka differs by 100x
25
Q

pH of two strong acids?

A

-add up both concentrations and take -log

CHEM 1001 (1 decks)

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