1. Drill: 5.3 kg of sodium carbonate is heated strongly.
Determine products
Balance reaction
Calculate the volume of gas produced when calculated at STP

2. Drill: Calculate the mass of (NH4)2SO4 produced when 11
Drill: Calculate the mass of (NH4)2SO4 produced when 11.2 mL NH3 gas reacts is excess H2SO4 in the following rxn: NH3 + H2SO4  (NH4)2SO4

3. Homework AP
Read Ch 5
Work problems: 11, 13, 15, 29, 31, 33, 41, 43, 51, & 69

4. Chm II Homework
Read Ch 12
Look over PP-11 attached on the Poly website.

5. Kinetic Theory

6. All matter is made up of tiny particles
The particles are in constant motion
All collisions are elastic

7. Drill:
Calculate the volume at STP of CO2 released when 23.4 g of aluminum carbonate is decomposed 75 % through heat

8. AP Test Changes No Choices in Problems
Only 3 reactions with predicting products
Balance rxns
No choices
Explain rxns

9. Pressure

10. Force per unit area
Caused by collisions against a surface
Gas measured in pressure

11. Units of Pressure kPa: kilopascal (Std Unit) Pascal: newton/sq. meter
Atmosphere (Atm):
mm Hg:

12. Standard Pressure 101.3 kPa (to be changed) 1.00 Atm
760 mm Hg or Torrs
30.0 inches Hg
1013 millibars

13. Gas Laws

14. State the Following Laws
Boyle’s Law
Charles’ Law
Gay Lussac’s Law
Dalton’s Law
Graham’s Law

15. Boyle’s Law

16. The pressure & volume of a gas at constant temperature are inversely proportioned
P1V1 = P2V2 = K

17. Charles’ Law

18. The volume and temperature of a gas at constant pressure are directly proportioned
V1/T1 = V2/T2 = K

19. Guy Lussac’s Law

20. The Pressure and temperature of a gas at constant volume are directly proportioned
P1/T1 = P2/T2 = K

21. Combined Gas Law

22. Combination of the three formulas
P1V1 /T1 =
P2V2/T2

23. Chm II Homework
Read Ch 12
Work problems:
31, 32, & 33
on page 477

24. Calculate the new volume of 5
Calculate the new volume of 5.0 L of gas when its pressure is doubled and its temperature is tripled:

25. Common Sense V1/n1 = V2/n2 = K
The volume of a gas is directly proportioned to the number of moles of gas
V1/n1 = V2/n2 = K

26. New Combination
P1V1/n1T1 =
P2V2/n2T2 = K

27. Ideal Gas Law
PV = nRT

28. Dalton’s Law

29. The total pressure = the sum of the partial pressures
PT = P1 + P2 + etc

30. Graham’s Law

31. The velocities of particles are inversely proportioned to the square root of their masses
v1/v2 = M2/M1

32. Drill: Calculate the volume of 3.0 moles of gas at
-23oC under 83.1 kPa pressure.

33. Calculate the volume of a gas at STP when it occupies 80
Calculate the volume of a gas at STP when it occupies 80.0 mL at 127oC under kPa pressure:

34. Calculate the number of moles of gas occupying 831 mL under 250 kPa at 227oC

35. Calculate the ratio of the velocities of He gas to HCl gas:

36. Chm II Homework
Read Ch 12
Work problems:
51, & 58
on page 478

37. Calculate the mass of CO2 occupying 83.1 mL under 25 GPa at 227oC

38. Drill:
Calculate the volume in mL of 4.0 g bromine gas at 127oC under 83.1 kPa pressure.

39. Ideal Gas Law
PV = nRT

40. Related Formulas m V
m/n
D or r =
MW =

41. MW = m/n
n = m/MW
PV = nRT

42. mRT MW PV
PV =
MW =

43. m V
mRT PV
D =
MW =

44. m V
m RT
V P
D =
MW =

45. DRT P
MW P RT
MW =
D =

46. Calculate the molecular mass of 5
Calculate the molecular mass of 5.0 g of gas occupying 831mL under 250 MPa at 227oC

47. Chm II Homework
Read Ch 12
Work problems:
46 or 47
on page 478

48. Drill: Calculate the density of carbon dioxide at 27oC under 83
Drill: Calculate the density of carbon dioxide at 27oC under 83.1 kPa pressure

49. The total pressure of a system is 120. 0 kPa
The total pressure of a system is kPa. The partial pressure of gas A is kPa. Determine the pressure of gas B

50. Drill: Calculate the ratio of the velocities of He gas to HCl gas:

51. Calculate the mass of 831 mL of CO2 at 27oC under 150 kPa pressure:

52. Drill:Calculate the volume of 4. 0 moles of gas under 83
Drill:Calculate the volume of 4.0 moles of gas under 83.1 kPa pressure at 127oC:

53. Calculate the volume of a gas at STP when it occupies 80
Calculate the volume of a gas at STP when it occupies 80.0 mL at 127oC under kPa pressure:

54. 5 Calculate the volume of 4. 0 moles of gas under 83
5 Calculate the volume of 4.0 moles of gas under 83.1 kPa pressure at 127oC:

55. Calculate the molecular mass of 50 g of gas occupying 831mL under 250 MPa at 227oC

56. Calculate the mass of 831 mL of CO2 at 167oC under 150 kPa pressure:

57. The total pressure of a system is 120. 0 kPa
The total pressure of a system is kPa. The partial pressure of gas A is kPa. Determine the pressure of gas B

58. The total pressure of a system is 150. 0 kPa
The total pressure of a system is kPa. The system contains 50 % A, 30 % B, & 20 % C. Determine the pressure of each gas.

59. Drill: Calculate the mass of CO2 occupying 83
Drill: Calculate the mass of CO2 occupying 83.1 mL under 25 MPa at 477oC

60. Calculate the density of carbon dioxide at 27oC under 83
Calculate the density of carbon dioxide at 27oC under 83.1 kPa pressure

61. Calculate the velocity HBr when the velocity Be is 270 m/s:

62. Calculate the final volume that 3
Calculate the final volume that 3.0 L of gas will obtain when the absolute temperature is tripled & the pressure is halved.

63. Calculate the mass of CO occupying 831 kL at 227oC under 2
Calculate the mass of CO occupying 831 kL at 227oC under 2.50 Mpa pressure.

64. Calculate the volume of H2 formed at 27oC under 150 kPa
when 6.8 mg NH3 decomposes making N2 & H2.