Grading Sheet for Carbonate Titration Curve

Chem 102, prepared Sp95

Name:
 

A (100-85%)

B (84-70%)
One Omission

C (69-50%)
Needs Work

DorF (<50%)
Bad/Not done

Comments

Quality of Overall Plot

10-9

8-7

6-5

4-0

  

End points summarized in Table?

Yes (5 points)

    

No (0 points)

  

End Points
(1st and 2nd)
Combined Score for both end points

3 Spreadsheet
3 Plot
3 Value ml
4 Error ml
------------
13-12 Points






11-9 Points






8-6 Points






5-0 Points

  

1. Estimate from plot

          

2. First Derivative

          

3. Second Derivative

          

4. 1/1st Derivative

          

5. Frontside Grans

          

6. Backside Grans

          

Compute, Plot and Compare Theoretical Titration curve (extra credit*)

10-9

8-7

6-5

4-0

  

Discussion of Which End point is Best:
-Accuracy
-Precision
-Convenience

24-20 Total

19-17 Total

16-12 Total

11-0 Total

  

Late Points

On time

1 period

2 periods

n periods

  

Total (117+10*)

          

Grade (50+4*)

          

*the 4 points (based on 50) extra credit can make up for downchecks or late points. Total score cannot exceed 50 points.