Ram's ap chem unit 7.1-7.7 moderate quiz

If Equilibrium is reached does the rate of the forward and reverse remain constant?

True

False

HF(aq)+H₂0(l)-->H₃O⁺(aq)+F^-(aq), concentration of H₃O⁺=0.2M, F^-=0.5 and HF=1.2M. Calculate the value of K

K=0.083

K=0.07

K=2.0

K=0.089

HF(aq)+H₂0(l)-->H₃O⁺(aq)+F^-(aq) if the concentration of F^-=0.0032M and concentration of HF=0.01M and the pH is 4.1 what is the equilibrium constant?

Keq=0.00002654

Keq=0.000035408

Keq=0.000025408

Keq=0.002459

How does the reaction shift if Q is greater than K constant

Reaction shifts right

Reaction shifts left

Reaction stays the same

How does reaction shift if Q is less than K constant

Reaction shifts right

Reaction shifts left

Reaction stays the same

How does the reaction shift if Q=K

Shifts right

Shifts left

Stays constant

2SO₂+O₂-->2SO_3,K=4.0 what will be the equilibrium constant if the equation is manipulated to 2SO₃-->2SO₂+O₂

.25

-4

-8

What is Law of mass action? Please write out the definition

2SO₂+O₂-->2SO₃, K=4.0, What will be the equilibrium constant if the equation is manipulated into 4SO₂+2O₂-->4SO₃

2So₂+O₂-->2SO₃, K=4.0

What will be the equilibrium constant if the equation is manipulated into 8SO₃-->8So₂+4O₂

.25

0.0039

1.0

0.0625

Are there units in equilibrium constants?

True

False

What is the correct way to manipulate Keq if the equation is flipped

K=1/x

K=x2

K=-x

K=x+2

Gas and solids are included in equilibrium expression

True

False

Explain why solids and pure liquids are not included in equilibrium expression?

Because they cannot change their concentration they are constant

They are included in the expression

Soilds and liquids volume is too large

They are dependent on their qualities

Gas and aqueous species are included in the equilibrium expression

True

False

Kp can be expressed in terms of?

Liters

Partial pressure

Moles

Molarity

3H₂+N₂-->2NH₃, in this equation H₂ is consumed three times as much than N₂

True

False

3H₂+N₂-->2NH₃, in this equation NH₃ is gaining twice as much concentration than N₂ getting consumed

True

False

Ram's ap chem unit 7.1-7.7 moderate quiz

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