|
|
|
| Calculations |
||
| Find
the surface area of the washer |
||
|
|
|
|
|
|
|
|
|
|
|
| Total area = 2p(r02-ri2)+ |
||||||||||
| 2pr0h +
2prih |
||||||||||
| r= radius |
||||||||||
| dzinc=7.14 g/cm3 |
||||||||||
| 5
individual measurements |
||||||||||
| for
each washer: |
||||||||||
|
|
|
|
|
| Volume of zinc
coating = mass of washer reacted/ density of zinc |
||||
| Total surface
area of zinc = Total surface area of washer |
||||
| Thickness of zinc
coating = Volume of zinc coating / Total surface area of zinc |
||||
| Statistics: Find
Average, SD and CI for V, A and thickness of zinc |
||||
| Diameter of
Zn atom = 268 pm, 1 m = 1012 pm |
||||