ILTS Biology: 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. What is NOT true about buffered solutions that is true about other solutions in equilibrium?

Question 2 2. What do Ka and Kb values say about acid and base strength?

Question 3 3. What does a buffer do?

Question 4 4. What is a buffer?

Question 5 5. Why is a teeter-totter a good illustration of an equilibrium adjustment between two gas volumes?

Page 2

Question 6 6. What is the equilibrium expression?

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 is a common ion?

Question 9 9. What is a RICE table?

Question 10 10. When is something considered soluble?

Page 3

Question 11 11. How do you calculate the pH of a buffered solution?

Question 12 12. 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 13 13. What does Boyle's law state about the role of pressure as a stressor on a system?

Question 14 14. Which of the following statements best describes Le Chatelier's Principle?

Question 15 15. What do the letters I, C, and E stand for in a RICE table?

Page 4

Question 16 16. What happens if a base is added to a buffered solution?

Question 17 17. What is the formula for calculating pH?

Question 18 18. 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 19 19. What is a saturated solution?

Question 20 20. What will happen if a chemical reaction system is stressed by an increase in the concentration of reactants?

Page 5

Question 21 21. Write the Ka formula for the reaction HCl + H2O --> H3O+ + Cl-

Question 22 22. What is the common ion effect?

Question 23 23. In general, what do Ksp values tell us about the solubility of a compound under the designated conditions?

Question 24 24. What is Ksp?

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 is the Ksp of the reaction AB = A + B if the solution contains 0.2 mol/L of A ions and 0.2 mol/L of B ions?

Question 27 27. What do you NOT keep track of in a RICE table?

Question 28 28. When does a precipitate form?

Question 29 29. What is the net effect of the common ion?

Question 30 30. What will be the result if heat is added to an endothermic reaction?

ILTS Biology: 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!

ILTS Science - Biology (105): Practice and Study Guide  /  Science Courses
Support