1. Quiz #12: Keq calculations and ICE charts
May 2016

2. A(g) + B(g)  2C(g) Keq = 10
0.20 moles of A and 0.40 moles of B are added to a 2.0 L container and allowed to react until equilibrium is reached.
Create the ICE chart
Determine the [A] at equilibrium
Determine the percent yield of the reaction

3. Quiz #12: Keq calculations and ICE chartsRewrite
May 2016

4. A(g) + B(g)  C(g) + D(g) Keq = 4
0.40 moles of A and 0.80 moles of B are added to a 4.0 L container and allowed to react until equilibrium is reached.
Create the ICE chart
Determine the [B] at equilibrium
Determine the percent yield of the reaction

5. Quiz #13: Q
May 2016

6. A(g) + B(g)  2C(g) Keq = 4
2.0 moles of A, 2.0 moles of B and 5.0 moles of C are added to a 1.0 L container and allowed to reach equilibrium. 1)Create the ICE chart. 2) What is the equilibrium concentration of [C] at equilibrium.

7. Quiz #14: LeChatelier’s Principle
May 2016

8. 2C(s) + 2H2(g)  C2H4(g) ΔHo = 52 kJ
For each of the following questions you will be considering the equilibrium reaction:
2C(s) + 2H2(g)  C2H4(g) ΔHo = 52 kJ
There may be more than one possible answer. Include all possibilities that are correct in your answer.

9. 2C(s) + 2H2(g)  C2H4(g) ΔHo = 52 kJ
Which of the following actions will increase the concentration of C2H4?
Adding some carbon to the equilibrium mixture?
Increasing the pressure of the mixture?
Putting the mixture in the refrigerator?

10. 2C(s) + 2H2(g)  C2H4(g) ΔHo = 52 kJ
2) Which of the following actions will cause a shift to the left?
Removing some hydrogen from the equilibrium mixture?
Putting the mixture into a bigger container?
Increasing the temperature?

11. 2C(s) + 2H2(g)  C2H4(g) ΔHo = 52 kJ
3) Which of the following actions will cause the equilibrium constant to increase in value?
Increasing the concentration of hydrogen?
Decreasing the pressure of the container?
Increasing the temperature?
Decreasing the temperature?

12. Quiz #15: Calculations using LeChatelier’s Principle
May 2016

13. PCl5(g)  PCl3(g) + Cl2(g)
1 litre of the equilibrium mixture contains 0.13 moles of PCl5, and moles each of PCl3 and Cl2. When some PCl3 is removed the concentration of PCl5 becomes 0.11M. How many moles of PCl3 is removed from 1 L of the equilibrium mixture? Create an ICE chart first.