1. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter 1 Image Slides

2. CHEMISTRY 101 Prof. Mohammed Wazeer Sections 10, 11, and 12  Textbook: Burdge 1st Edition  Office Location: Building 4, Room 221  Office Hours: SMW: 8:00-10:00 am or by appointment  Office Telephone: 3829  Email: miwazeer@kfupm.edu.sa

3. Grade Distribution First Major6015% Second Major 6015% Labwork100 (75%)25% Class work80 (65%)20% Final Exam10025% Total400100%

4. Distribution Class Grade 80 8 Quizzes will be given Take the best 6 for each student60 Attendance10 Home Work(WebCT)10

5. Students Responsibilities 1. Read and Study every detail in textbook. 2. Use the internet educational tools provided by Burdge and others. 3. Search for other sources of information: other textbooks and references, internet, etc. 4. Solve homeworks on time (WebCT). Homeworks are NOT enough to get a good grade, 5. students should solve all the problems they can and also old exams. 6.Check www.kfupm.edu.sa/chem/gchem and instructor website http://faculty.kfupm.edu.sa/CHEM/miwazeer/ regularly to get information

6. Instructor’s Role To summarize important points of each chapter. Give directions on how and where to find information. Solve typical problems and give quizzes during recitation. Answer your questions during office hours. In summary, I am a facilitator and NOT a teacher that will feed information in your brains. You are responsible now for your life.

7. Figure 01.03

8. Figure 1.5: The various parts of the scientific method.

9. Atoms, Molecules, Compounds and Mixtures

10. 3 states of Matter Solid, Liquid and Gas

11. Figure 01.05

12. Figure 01.06a

13. Figure 01.06b

14. Figure 01.07

15. Table 01.02

16. Figure 01.08

17. Figure 01.09

18. Table 01.03

19. Properties of Matter 1. Extensive property – Depends on the amount of matter. Example: mass, volume etc. 2. Intensive property Does not depends on the amount of matter Example: Density, temperature etc.

20. Uncertainty in Measurement A digit that must be estimated is called uncertain.A digit that must be estimated is called uncertain. A measurement always has some degree of uncertainty.A measurement always has some degree of uncertainty.

21. Figure 01.10

22. Rules for Significant Figures in Mathematical Operations Multiplication and Division: # sig figs in the result equals the number in the least precise measurement used in the calculation. 6.38 X 2.0 = 12.76 → 13 (2 sig figs)

23. Addition and Subtraction: # sig figs in the result equals the number of decimal places in the least precise measurement.Addition and Subtraction: # sig figs in the result equals the number of decimal places in the least precise measurement. 6.8 + 11.934 + 11.934 = 18.734 18.734  18.7 (3 sig figs)18.734  18.7 (3 sig figs)

24. Sample problem 1.5 a.317.5 mL + 0.675 mL 318.175 mL round to 318.2 mL b.47.80 - 2.075 45.725 round to 45.73 c. 13.5g/ 45.18 L = 0.2988047 round to 0.299 g/L

25. S.P. 1.5 contd d. 6.25 cm x 1.175 cm = 7.34375 cm 2 round to 7.34 cm 2 e. 5.46 x 10 2 g +49.91 x 10 2 g 55.37 x 10 2 g 5.537 x 10 3 g

26. Examples 1. 0.355 +105.1 -100.5820 4.8730 → 4.9 2. 4.562 x 3.99870 / (452.6755 – 452.33) 0.3455 52.79904 → 2 sig fig 53

27. Precision and Accuracy Accuracy refers to the agreement of a particular value with the true value. Precision refers to the degree of agreement among several elements of the same quantity.

28. Figure 01.11

29. The results of several dart throws show the difference between precise and accurate.

30. Figure 01.12

31. The three major temperature scales

32. Normal body temperature on the Fahrenheit, Celsius, and Kelvin scales

33. TEMPERATURE CONVERSION T K = T C + 273.15 T F = T C x 9 o F/5 o C + 32 F

34. Dimensional Analysis 1m = 100 cm; this can be written as 100 cm or 1m 1m 100 cm 1 inch = 2.54 cm 1 inch or 2.54 cm 2.54 cm 1 inch Convert 12.00 in into m 12.00 in x 2.54 cm x 1 m = 0.3048 m 1 in 100 cm

35. Sample problem 1.7 convert 2400 mg into pounds (lb) 1 lb = 453.6 g. Sample problem 1.8 convert 5.2 L into m 3

36. Ethylene glycol is the main component in the automobile antifreeze. Device a new temperature scale where M.P. -45 o C is taken as 0 o A and B.P. 115 o C is taken as 100 o A. What is the temperature in o C when this thermometer reads 86 o A?

37. Text Figure 01.06

38. TABLES

39. Table 01.01