Lab Grading Criteria
|
KHP Determination |
||
% error |
% of Points |
Points Earned |
<0.18 |
100 |
50 |
0.18 - 0.36 |
90 |
45 |
0.36 - 0.54 |
80 |
40 |
0.54 - 0.72 |
70 |
35 |
0.72 - 0.90 |
60 |
30 |
0.90 - 1.08 |
50 |
25 |
1.08 - 1. 75 |
40 |
20 |
>1. 75 |
30 |
15 |
|
Magnesium Determination with EDTA |
||
% error |
% of Points |
Points Earned |
<0.7 |
100 |
50 |
0.7 - 1.4 |
90 |
45 |
1.4 - 2.5 |
80 |
40 |
2.5 - 3.9 |
70 |
35 |
3.9 - 5.3 |
60 |
30 |
5.3 - 6.7 |
50 |
25 |
6.7 - 8.1 |
40 |
20 |
>8.1 |
30 |
15 |
|
Gravimetric Determination of Nickel |
||
% error |
% of Points |
Points Earned |
< 1 |
100 |
75 |
1 - 3 |
90 |
67.5 |
3 - 4 |
80 |
60 |
4 - 5 |
70 |
52.5 |
5 - 6 |
60 |
45 |
6- 7 |
50 |
37.5 |
7 - 8 |
40 |
30 |
>8 |
30 |
22.5 |
|
Determination of Ka of Weak Acid |
||
% error |
% of Points |
Points Earned |
<0.2 |
100 |
50 |
0.2 - 0.4 |
90 |
45 |
0.4 - 0.6 |
80 |
40 |
0.6 - 0.8 |
70 |
35 |
0.8 - 1.2 |
60 |
30 |
1.2 - 1.8 |
50 |
25 |
1.8 - 3.0 |
40 |
20 |
> 3.0 |
30 |
15 |
|
Determination of Iron |
||
% error |
% of Points |
Points Earned |
< 3 |
100 |
50 |
3 - 4.5 |
90 |
45 |
4.5 - 6 |
80 |
40 |
6 - 9 |
70 |
35 |
9 - 11 |
60 |
30 |
11 - 13 |
50 |
25 |
13 - 21 |
40 |
20 |
> 21 |
30 |
15 |
|
Determination of Fluoride |
||
% error |
% of Points |
Points Earned |
<2 |
100 |
50 |
2 - 4 |
90 |
45 |
2 - 6 |
80 |
40 |
6 - 8 |
70 |
35 |
8 - 1 0 |
60 |
30 |
10 - 1 2 |
50 |
25 |
12 - 16 |
40 |
20 |
> 16 |
30 |
15 |