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CEOE Physical Science: Equilibrium 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. When does a precipitate form?

Question 2 2. Which of the following is true about the equilibrium constant?

Question 3 3. What is titration?

Question 4 4. 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 5 5. Which of the following is true about the reaction quotient?

Page 2

Question 6 6. What happens if a base is added to a buffered solution?

Question 7 7. If you have a solution in equilibrium containing Cl- ions and you added NaCl to the solution, what is going to happen?

Question 8 8. What does a buffer do?

Question 9 9. A 60mL HCl solution is titrated with 25mL of a 0.60M KOH solution. What is the concentration of the HCl solution?

Question 10 10. What do the brackets indicate in an equilibrium equation?

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Question 11 11. Where does the equivalence point occur on a titration curve for a strong acid/strong base titration?

Question 12 12. What does Boyle's law state about the role of pressure as a stressor on a system?

Question 13 13. What is the formula for calculating pH?

Question 14 14. What is the equation for the equilibrium constant of the reaction nA + mB → xC + yD?

Question 15 15. What is a common ion?

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Question 16 16. What is the common ion effect?

Question 17 17. What is Ksp?

Question 18 18. What is a saturated solution?

Question 19 19. When is something considered soluble?

Question 20 20. What do Ka and Kb values say about acid and base strength?

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Question 21 21. What is a buffer?

Question 22 22. What will happen if a chemical reaction system is stressed by an increase in the concentration of reactants?

Question 23 23. Under the premise of a chemical equilibrium, which of the following can be presumed?

Question 24 24. What is the net effect of the common ion?

Question 25 25. In general, what do Ksp values tell us about the solubility of a compound under the designated conditions?

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Question 26 26. What is the Ka value for a monoprotic weak acid with a concentration of 1 M, and hydronium ion concentration of 0.0050 M?

Question 27 27. What will be the result if heat is added to an endothermic reaction?

Question 28 28. What is the equilibrium expression?

Question 29 29. What happens in a neutralization reaction?

Question 30 30. When the reaction quotient is less than the equilibrium constant, in which direction will the reaction proceed?

CEOE Physical Science: Equilibrium 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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