1. IPC Unit 1 Test Review

2. Why is it important to waft vapors?
Question 1
Why is it important to waft vapors?

3. To protect the respiratory tract!
Question 1 Answer
To protect the respiratory tract!

4. Why is important to use clean glassware and store it properly?
Question 2
Why is important to use clean glassware and store it properly?

5. To prevent contamination
Question 2 Answer
To prevent contamination

6. Question 3
When boiling water and using a thermometer, what safety precautions should you take?

7. Question 3 Answer
Fire blanket, goggles, lab apron, know where the safety equipment is located

8. Question 4: Which piece(s) of glassware would measure volume?
Triple beam balance
Beaker
Hot plate
Bunsen burner
Graduated cylinder

9. Question 4 Answer
Beaker
Graduated Cylinder

10. Question 5
Which piece of glassware would give you the most precise measurements?
Beaker
Pipette
Graduated Cylinder

11. Question 5 Answer
Graduated Cylinder

12. Question 6
When using chemicals, do you ever put the chemicals back into the original container?

13. Question 6 Answer
NO!

14. Question 7
Before you mass something on an balance, what should you do?

15. Protect the balance with weigh paper or a paper towel
Question 7 Answer
Protect the balance with weigh paper or a paper towel

16. Question 8 Which measurements are precise? 31, 35, 32 56, 59, 58
45.1, 44.9, 45.0
78, 71, 64

17. Question 8 Answer
45.1, 44.9, 45.0

18. Question 9
To get an accurate reading from a graduated cylinder, what do you read?

19. Question 9 Answer
Meniscus

20. Question 10
What is the volume on this graduated cylinder?

21. Question 10 Answer
21.2 mL

22. Question 11 Which group is the most precise? Density (g/mL) Group 1
Trial 1
0.889
1.045
1.082
Trial 2
1.012
1.046
1.023
Trial 3
1.065
1.044
1.085
Average
0.988
1.063

23. Question 11 Answer Group 2 Density (g/mL) Group 1 Group 2 Group 3
Trial 1
0.889
1.045
1.082
Trial 2
1.012
1.046
1.023
Trial 3
1.065
1.044
1.085
Average
0.988
1.063

24. Question 12
If you are precise, are you accurate?

25. Question 12 Answer
NO!

26. Question 13
If you are accurate, are you precise?

27. Question 13 Answer
YES!

28. Question 14
Changing phase from solid to gas

29. Question 14 Answer
Sublimation

30. Question 15
Liquid to Gas

31. Question 15 Answer
Evaporation (through the boiling process)

32. Question 16
Gas to Liquid

33. Question 16 Answer
Condensation

34. Question 17
Gas to Solid

35. Question 17 Answer
Deposition

36. For the next questions, determine whether the answer is a solid, liquid or gas…

37. Question 18
Particles vibrate

38. Question 18 Answer
Solid

39. Question 19
Particles vibrate and can slide past each other

40. Question 19 Answer
Liquid

41. Question 20
No definite shape or volume

42. Question 20 Answer
Gas

43. Question 21
Particles arranged in a definite pattern

44. Question 21 Answer
Solid

45. Question 22
Particles move freely

46. Question 22 Answer
Gas

47. Question 23
Particles can form crystals

48. Question 23 Answer
Solids

49. Question 24
Particles have definite shape but no definite volume

50. Question 24 Answer
Liquids