1. AP Chemistry Final Exam Review Questions

2. Copper has two natural isotopes: copper-63 (62.9296u) is 69.17% of copper. What is the other isotope? A) copper-64 B) copper-65 C) copper-66 D) copper-67 Answer: B

3. Copper has two natural isotopes: copper-63 (62.9296u) is 69.17% of copper. What is the other isotope? A) copper-64 B) copper-65 C) copper-66 D) copper-67

4. Copper has two natural isotopes: copper-63 (62.9296u) is 69.17% of copper. What is the other isotope? A) copper-64 B) copper-65 C) copper-66 D) copper-67

5. For the reaction 2A + 5B → D + 3E If 1.0 mole of each reactant is mixed, what is the limiting reagent? A) A B) B C) D D) D Answer: B

6. For the reaction 2A + 5B → D + 3E If 5.0 moles of B completely reacts and there is a 70% yield, how much E is actually produced? A) 3.0 mole B) 5.0 mole C) 2.1 mole D) 3.5 mole Answer: C

7. For the reaction 2A + 5B → D + 3E If 5.0 moles of B completely reacts and there is a 70% yield, how much E is actually produced? A) 3.0 mole B) 5.0 mole C) 2.1 mole D) 3.5 mole

8. For the reaction 2A + 5B → D + 3E If 3.0 mole A is mixed with 4.0 mole B what is the maximum amount of E that can be produced? A) 2.0 mole B) 2.4 mole C) 3.0 mole D) 7.0 mole Answer: B

9. For the reaction 2A + 5B → D + 3E If 3.0 mole A is mixed with 4.0 mole B what is the maximum amount of E that can be produced? A) 2.0 mole B) 2.4 mole C) 3.0 mole D) 7.0 mole

10. Which of the following contains the most number of moles of ions? A) 1L of 0.1M NaOH B) 1L of 0.1M Na 2 SO 4 C) 2L of 0.1M KCl D) 2L of 0.1M K 2 SO 3 Answer: D

11. Which of the following contains the most number of moles of ions? A) 1L of 0.1M NaOH B) 1L of 0.1M Na 2 SO 4 C) 2L of 0.1M KCl D) 2L of 0.1M K 2 SO 3

12. What is the oxidizing agent in the reaction of permanganate with hydrogen peroxide? A) permanganate B) hydrogen peroxide C) manganese(II) D) oxygen Answer: A

13. What is the oxidizing agent in the reaction of permanganate with hydrogen peroxide? A) permanganate B) hydrogen peroxide C) manganese(II) D) oxygen

14. What mass of copper(II) sulfate pentahydrate (249.6 g/mol) is needed to make 300.mL of a 0.20M solution? A) 0.60 g B) 249.6 g C) 15 g D) 50. g Answer: C

15. If 50.g of water at 10°C is added to 25g of water at 60°C. What is the final temperature? A) 20°C B) 23°C C) 25°C D) 27°C Answer: D

16. If 50.g of water at 10°C is added to 25g of water at 60°C. What is the final temperature? A) 20°C B) 23°C C) 25°C D) 27°C

17. Use the following to find the enthalpy of formation for B 2 H 6. A) -5061 kJ B) 995 kJ C) -995 kJ D) -4031 kJ Answer: D

18. Use the following to find the enthalpy of formation for B 2 H 6. A) -5061 kJ B) 995 kJ C) -995 kJ D) -4031 kJ Answer: D

19. Which of the following electron transitions would release the least energy from a hydrogen atom? A) n=4 to n=3 B) n=3 to n=2 C) n=2 to n=1 D) n=2 to n=3 Answer: A

20. Which of the following electron transitions would release the least energy from a hydrogen atom? A) n=4 to n=3 B) n=3 to n=2 C) n=2 to n=1 D) n=2 to n=3

21. What are possible quantum numbers (n, l, m l ) for a 4f orbital? A) 4, 1, 0 B) 4, 2, 1 C) 4, 3, 0 D) 4, 3, 4 Answer: C