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Equilibrium: AP Chemistry Lesson Plans Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. How do you determine the concentration of an unknown substance from the titration data?

Question 2 2. An example of a reversible reaction is shown by which of the following?

Question 3 3. What type of titration has an equivalence point above pH 7?

Question 4 4. What is NOT true about buffered solutions that is true about other solutions in equilibrium?

Question 5 5. What is the common ion effect?

Page 2

Question 6 6. What is a common ion?

Question 7 7. What happens if a base is added to a buffered solution?

Question 8 8. What factor is most important when determining pH?

Question 9 9. What is the formula for calculating pH?

Question 10 10. When does a precipitate form?

Page 3

Question 11 11. A student is filling out a RICE table, and for one substance they know the value of I and the value of E. How would the student determine the value of C for this substance?

Question 12 12. How do you calculate the pH of a buffered solution?

Question 13 13. What is a buffer?

Question 14 14. What will be the result if heat is added to an endothermic reaction?

Question 15 15. What is the equilibrium expression?

Page 4

Question 16 16. What do you NOT keep track of in a RICE table?

Question 17 17. In general, what do Ksp values tell us about the solubility of a compound under the designated conditions?

Question 18 18. What is a titration curve?

Question 19 19. What do Ka and Kb values say about acid and base strength?

Question 20 20. What do the brackets indicate in an equilibrium equation?

Page 5

Question 21 21. What does a buffer do?

Question 22 22. For the reaction A + B makes product C, what is the reaction quotient if the amount of A is 2, B is 3 and C is 8?

Question 23 23. What does the reaction quotient determine?

Question 24 24. Write the Ka formula for the reaction HCl + H2O --> H3O+ + Cl-

Question 25 25. The base NH3 dissociates in water to make NH4+ and OH-. What is the conjugate acid?

Page 6

Question 26 26. What would the proper axis labels be for a titration curve in which a strong base was titrated with a strong acid?

Question 27 27. Where does the equivalence point occur on a titration curve for a strong acid/strong base titration?

Question 28 28. Which of the following is correctly labeled.

Question 29 29. Calculate the value of the equilibrium constant, K, for the system below, if 0.0954 moles of CO2, 0.0454 moles of H2, 0.0046 moles of CO, and 0.0046 moles of H2O vapor were present in a 1.00 L reaction vessel at equilibrium.

Question 30 30. What is chemical equilibrium?

Equilibrium: AP Chemistry Lesson Plans Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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