Final Exam Review Units 8-10

1. Final Exam ReviewUnits 8-10 45Questions in 80 minutes 1:45 per question 15 Questions = 33points 26:33 timer

2. Station 1 (Heat Unit 8) • Which of the following is an endothermic phase change? • Sublimation • Freezing • Condensation • None of these

3. Station 1 (Heat Unit 8) • Which of the following is an endothermic phase change? • Sublimation • Freezing • Condensation • None of these

4. Station 2 (Heat Unit 8) • How much heat does a 3.0 gram ice cube absorb as its temperature increases from -7.4C to 5.0C? • 46.62 J • 1001 J • 1110.42 J • 155.5 J

5. Station 2 (Heat Unit 8) • How much heat does a 3.0 gram ice cube absorb as its temperature increases from -7.4C to 5.0C? • 46.62 J • 1001 J • 1110.42 J • 155.5 J

6. Station 3 (Heat Unit 8) • How much heat is released when 4.1 grams of water is frozen? • 1.4 kJ • 25 kJ • 170 kJ • 9.3 kJ

7. Station 3 (Heat Unit 8) • How much heat is released when 4.1 grams of water is frozen? • 1.4 kJ • 25 kJ • 170 kJ • 9.3 kJ

8. Station 4 (Heat Unit 8) • Classify the condensation of steam as a chemical change or a physical change. • Chemical change • Physical change

9. Station 4 (Heat Unit 8) • Classify the condensation of steam as a chemical change or a physical change. • Chemical change • Physical change

10. Station 5 (Heat Unit 8) • If 3.0g of water at 35C is mixed with 8g of ethanol at 9C, what is the final temp of the mixture? • 19.2C • 39.4C • 10.4C • 42.0C • None of these

11. Station 5 (Heat Unit 8) • If 3.0g of water at 35C is mixed with 8g of ethanol at 9C, what is the final temp of the mixture? • 19.2C • 39.4C • 10.4C • 42.0C • None of these

12. Station 6 (Solutions Unit 9) • Which of the following would NOT increase the rate of solvation? • Increase surface area • Agitate the mixture by stirring • Increase the temperature of the solvent • All of these will increase the rate. • A and B

13. Station 6 (Solutions Unit 9) • Which of the following would NOT increase the rate of solvation? • Increase surface area • Agitate the mixture by stirring • Increase the temperature of the solvent • All of these will increase the rate. • A and B

14. Station 7 (Solutions Unit 9) • Use the solubility graph on your reference sheet. If 70 grams of O2 is dissolved in water at room temperature (24C), will the solution be saturated, supersaturated, or unsaturated? • Saturated • Supersaturated • Unsaturated • Cannot tell based on the information given.

15. Station 7 (Solutions Unit 9) • Use the solubility graph on your reference sheet. If 70 grams of O2 is dissolved in water at room temperature (24C), will the solution be saturated, supersaturated, or unsaturated? • Saturated • Supersaturated • Unsaturated • Cannot tell based on the information given.

16. Station 8 (Solutions Unit 9) • Which of the following aqueous solutions will give the highest freezing point? • 1m KI • 1m CaF2 • 1mAlPO4 • 1m Mg3(PO4)2 • All of these solutions will have the same freezing point.

17. Station 8 (Solutions Unit 9) • Which of the following aqueous solutions will give the highest freezing point? • 1m KI • 1m CaF2 • 1mAlPO4 • 1m Mg3(PO4)2 • All of these solutions will have the same freezing point.

18. Station 9 (Solutions Unit 9) • A solution is 14.2 M NaOH and is diluted. What is the concentration if 10mL of the concentrated solution is diluted to 630mL? • 0.225 M • 14.4 M • 895 M • 0.895 M • 14.0 M

19. Station 9 (Solutions Unit 9) • A solution is 14.2 M NaOH and is diluted. What is the concentration if 10mL of the concentrated solution is diluted to 630mL? • 0.225 M • 14.4 M • 895 M • 0.895 M • 14.0 M

20. Station 10 (Solutions Unit 9) • How many grams of lithium chloride would you need to add to 25g water to make 0.80 molal solution? • 0.02 grams of LiCl • 0.2 grams of LiCl • 20 grams of LiCl • 0.848 grams of LiCl • 0.00048 grams of LiCl

21. Station 10 (Solutions Unit 9) • How many grams of lithium chloride would you need to add to 25g water to make 0.80 molal solution? • 0.02 grams of LiCl • 0.2 grams of LiCl • 20 grams of LiCl • 0.848 grams of LiCl • 0.00048 grams of LiCl

22. Station 11 (Solutions Unit 9) • What is the volume of solution if the molarity is 0.45M and 0.15 moles of solute are dissolved? • 0.33 L of solution • 0.33 mL of solution • 3.00 L of solution • 3.00 mL of solution • None of these

23. Station 11 (Solutions Unit 9) • What is the volume of solution if the molarity is 0.45M and 0.15 moles of solute are dissolved? • 0.33 L of solution • 0.33 mL of solution • 3.00 L of solution • 3.00 mL of solution • None of these

24. Station 12 (Acid/Base Unit 10) • According to the Arrhenius theory a substance that releases a hydrogen ion is classified as a(n) • Acid • Base • Conjugate Acid • Conjugate Base • None of these

25. Station 12 (Acid/Base Unit 10) • According to the Arrhenius theory a substance that releases a hydrogen ion is classified as a(n) • Acid • Base • Conjugate Acid • Conjugate Base • None of these

26. Station 13 (Acid/Base Unit 10) • Consider the reaction: NH3(aq) + H2O(l)  NH4+(aq) + OH-(aq) What species is the conjugate acid? • NH3 • H2O • NH4+ • OH- • None of these

27. Station 13 (Acid/Base Unit 10) • Consider the reaction: NH3(aq) + H2O(l)  NH4+(aq) + OH-(aq) What species is the conjugate acid? • NH3 • H2O • NH4+ • OH- • None of these

28. Station 14 (Acid/Base Unit 10) • Calculate the [H+] in a solution that has a pOH of 13.4. • 3.98x10-14 M • 2.51x10-1 M • 3.98 M • 2.51x1013 M • None of these

29. Station 14 (Acid/Base Unit 10) • Calculate the [H+] in a solution that has a pOH of 13.4. • 3.98x10-14 M • 2.51x10-1 M • 3.98 M • 2.51x1013 M • None of these

30. Station 15 (Acid/Base Unit 10) • A solution with a hydrogen ion concentration of 4.6x10-8 M has a pH between • 6.67 • 7.34 • -7.34 • 13.3 • None of these

31. Station 15 (Acid/Base Unit 10) • A solution with a hydrogen ion concentration of 4.6x10-8 M has a pH between • 6.67 • 7.34 • -7.34 • 13.3 • None of these