THE MOLE Lab
NAME
PROCEDURES: MASS THE SAMPLES AT EACH STATION; USE DIMENSIONAL ANALYSIS; LABEL YOUR
ANSWER AND USE SIG. FIGS; AND
YOUR ANSWERS.
CIRCLE
Station #1
1. Mass the empty container.
Station # 2 - Lead
2. Mass the sample. (with the container)
3. Mass of sample (without the container)
4.Element
symbol:_____
5. Molar mass:
6. Moles of Lead. (start with the mass of your sample)
____________
7. Atoms of Lead (start with the mass of your sample and use Avogadro’s
number)
Station #3 –Water 8. Mass the sample. (with the container)
9. Mass of sample (without the container)
12. Percent of Hydrogen in water:
13. Percent of Oxygen in water:
10. formula for
water:_________
14. # of moles of water (start with the mass of your sample)
11. Molar mass of
water:
_____________
Show work here:
15. # of molecules of water (start with the mass of your sample, find moles,
and use Avogadro’s number to find molecules)
16. # of hydrogen atoms present. (start with the molecules of water)
Station #4 –
17. Mass the sample. (with container)
18. Mass of salt. (without the container)
21. Percent of sodium in sodium chloride:
Sodium Chloride
19. Formula for
Sodium Chloride:
22. Percent of chlorine in sodium chloride:
_____________
20. Molar mass of
sodium chloride:
______________
Show work here
23. # of moles in your sample
24. # of FU in your sample (start with the mass of your sample)
25. # of atoms in your sample (start with FU)
26. # chlorine atoms in your sample (start with formula units)
Station #5 –
Magnesium
Sulfate;
27. Mass the sample. (with container)
28. Mass of salt sample. (without container)
31. Moles (start with the mass of your sample)
29. Formula for
magnesium
sulfate:
32. # of FUs in your sample (start with the moles of your sample)
____________
30. Molar mass:
33. # of FU in your sample (start with the mass of your sample)
___________
34. # of atoms in your sample (Start with FU):
35.# of oxygen atoms present (start with the FU of your sample)
36. # of oxygen atoms present in your sample (start with the mass of your
sample)
Station #6
NaHCO3.
Sodium
Bicarbonate;
37. Mass the sample. (with the container)
38. Mass of salt. (without the container)
39. Percent of sodium in sodium bicarbonate
39.
Molar
mass:_________
Show work here
40 percent of oxygen in sodium bicarbonate
39. # of moles of sodium bicarbonate.
40. # of oxygen atoms. (start with the grams of your sample, find moles, then
FU, then oxygen atoms… use one long DA set up)
Station #7 –
Calcium
Carbonate;
41. Mass the sample. (with the container)
42. Mass the sample (without the container)
45. What is the Percent of O in Calcium Carbonate?
43. Formula:
____________.
44. Molar mass:
46. # of moles present
Show work here
47. # of formula units present (start with the moles of your sample)
48. # of atoms present in calcium carbonate (start withFU)
49. # of oxygen atoms in calcium carbonate (Start with FU)
Mole lab rubric /96
Lab set up
____ 3
____ 5
____3
Station 1 & 2
____1
____ 1
____ 1
____ 2
____4
____4
Station 3
____ 1
____ 1
____ 2
____4
____4
____4
Station 4
____1
____ 1
____ 2
____4
____4
Station 5
____1
____ 1
____ 2
____4
____4
____4
Station 6
____1
____ 1
____ 2
____4
____4
Station 7
____1
____ 1
____ 2
____4
____4
____4
Mole lab put in lab notebook according to lab instructions – title page; title; objectives;
procedure and materials; tables cut and pasted/taped in notebook according to lab
instructions
Mole lab physical completed within one week of assigned lab
Lab neat, in ink, rubric included
1.
2.
3.
4.
5.
6.
Mass of empty container reported to the correct sig figs
Mass of sample with the container reported to the correct sig figs
Mass of sample without the container reported to the correct sig figs
Correct molar mass for lead with label g/mol
Dimensional analysis is used; answer labeled and circled; correct sig figs
Dimensional analysis is used; answer labeled and circled; correct sig figs
7. Mass of sample with the container reported to the correct sig figs
8. Mass of sample without the container reported to the correct sig figs
9. Correct molar mass for water with label g/mol
10. Dimensional analysis is used; answer labeled and circled; correct sig figs
11. Dimensional analysis is used; answer labeled and circled; correct sig figs
12. Dimensional analysis is used; answer labeled and circled; correct sig figs
13.
14.
15.
16.
17.
Mass of sample with the container reported to the correct sig figs
Mass of sample without the container reported to the correct sig figs
Correct molar mass for NaCl with label g/mol
Dimensional analysis is used; answer labeled and circled; correct sig figs
Dimensional analysis is used; answer labeled and circled; correct sig figs
18.
19.
20.
21.
22.
23.
Mass of sample with the container reported to the correct sig figs
Mass of sample without the container reported to the correct sig figs
Correct molar mass for magnesium sulfate with label g/mol
Dimensional analysis is used; answer labeled and circled; correct sig figs
Dimensional analysis is used; answer labeled and circled; correct sig figs
Dimensional analysis is used; answer labeled and circled; correct sig figs
24.
25.
26.
27.
28.
Mass of sample with the container reported to the correct sig figs
Mass of sample without the container reported to the correct sig figs
Correct molar mass for NaHCO3 with label g/mol
Dimensional analysis is used; answer labeled and circled; correct sig figs
Dimensional analysis is used; answer labeled and circled; correct sig figs
29.
30.
31.
32.
33.
34.
Mass of sample with the container reported to the correct sig figs
Mass of sample without the container reported to the correct sig figs
Correct molar mass for CaCO3 with label g/mol
Dimensional analysis is used; answer labeled and circled; correct sig figs
Dimensional analysis is used; answer labeled and circled; correct sig figs
Dimensional analysis is used; answer labeled and circled; correct sig figs