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100

N2O4 (g) ⇋ 2 NO2 (g)

5.00 moles of N2O4 and 2.50 moles of NO2 are placed in a 5.00 L container and left to react per the equilibrium above (Kc = 0.063). The reaction proceeds in this direction.


What is left? 

100

This letter is used to represent the reaction quotient. 

What is Q?

100

This is the solubility product for copper (II) nitrate.

What is... 

100

This is the scientist who described how equilibrium systems will respond to different stresses. 

Who is Le Chatelier?

100

This is the only sport to have been played on the moon.

What is golf?

200

H2 (g) + I2 (g) ⇋ 2 HI (g)

2.50 moles of hydrogen gas and 5.00 moles of iodine gas are allowed to reach equilibrium in a 1.0 L container. At equilibrium the mixture contained 1.22 moles of HI. This value represents the equilibrium concentration of H2.

What is 1.89 M? 

200

This formula represents the equilibrium constant for the equilibrium shown below: 

4 NH3 (g) + 5 O2 (g) ⇋ 4 NO (g) + 6 H2O (g)

What is...

200

Ag2CO3 (s) ⇋ 2 Ag+ (aq) + CO32- (aq)

This option represents the correct mathematical expression to calculate the solubility of silver carbonate (S) based on Ksp. 

What is D? 

200

N2 (g) + 3 H2 (g) ⇋ 2 NH3 (g)         

ΔHrxn = -92 kJ/mol

This refers to the direction the equilibrium will proceed when 5.00 moles of NH3 are removed from the system.

What is right? (towards products)

200

The world's tallest building, the Burj Khalifa, is found in this middle eastern city.

What is Dubai? 

300

SO2Cl2 (g) ⇋ SO2 (g) + Cl2 (g)

0.035 moles of SO2, 0.500 moles of SO2Cl2, and 0.080 moles of Cl2 are combined in an evacuated 5.00 L flask and heated to 100°C. Kc = 0.078

The value of Q is this. 

What is Q = 0.00112?

300

For a certain reaction at 35°C, the value of K is 3.6 x 10-4. At 65°C, the value of K is 4.5 x 10-2

This data indicates that the reaction is this. (endo or exothermic?)

What is endothermic?


300

Pb(OH)2         Ksp = 2.8 x 10-16

Ag2CO3          Ksp = 8.1 x 10-12

BaF2               Ksp = 1.7 x 10-6

Based on the data above, this salt would be expected to have the highest solubility. 

What is BaF2?

300

N2 (g) + 3 H2 (g) ⇋ 2 NH3 (g)         

ΔHrxn = -92 kJ/mol

This refers to the direction the equilibrium will proceed when the temperature of the reaction vessel is heated to 500°C. 

What is left? (towards reactants)

300

This unit of measurement, equal to approximately six feet, is used to measure the depth of water?

What is the fathom?

400

H(g) + CO(g) ⇋ H2O (g) + CO (g)

Kc = 1.6

1.00 moles of H2 and 2.00 moles of CO2 are placed in a 5.00 L container. This is the equilibrium concentration of all species at equilibrium. 

What is...

[H2] = 0.053 M

[CO2] = 0.253 M

[H2O] = 0.147 M

[CO] = 0.147 M

400

This is the expression for K3 in terms of K1 and K2

What is...

400

Sn(OH)2         Ksp = 5.45 x 10-27

CuS               Ksp = 8.5 x 10-45

Bi2S3            Ksp = 1.1 x 10-73

Based on the data above, this salt would be expected to have the highest solubility. 

What is Sn(OH)2?

400

N2 (g) + 3 H2 (g) ⇋ 2 NH3 (g)         

ΔHrxn = -92 kJ/mol

This refers to the direction the equilibrium will proceed when the reaction vessel is pressurized to 150 atm.

What is right? (towards products)

400

These two countries share the longest border in the world? 

What are the United States & Canada?
500

22 NO2 (g) ⇋ N2O4 (g)

Kc = 9.3 x 10-7 at room temperature. 

A 1.00 L container is filled with 3.00 moles of NO2. The equilibrium concentration of N2O4 is given by this value. 

What is [N2O4] = 8.37 x 10-6 M?

500

For a given reaction, the value of Kc can be changed by doing this. 

What is changing the temperature of the reaction?

500
The Ksp of calcium fluoride is 4.0 x 10-11. The solubility of calcium fluoride in a 0.025 M solution of NaF is given by this value. 

What is 6.4 x 10-8 M?

500

N2O5 (g) + H2O (l) ⇋ 2 HNO3 (aq)

This refers to the direction the equilibrium will proceed if the reaction system is pressurized to 2.50 atm.

What is right? (towards the products)

500
The spice "allium sativum" is more commonly known as this. 

What is garlic?