Here are the results from the KCl lab. You are to use the to make a solubility graph.: ( temperatures are in degrees Celsius. They are the temperatures when the KCl came OUT of the saturated solution when being cooled.)
Trial |
3.4g KCl |
4.0g KCl |
4.5g KCl |
4.8g KCl |
1 |
24 |
27.6 |
35.6 |
78.9 |
2 |
23.2 |
51.2 |
54.1 |
81.1 |
3 |
18.8 |
38.4 |
74.9 |
71.3 |
4 |
20 |
39.75 |
74.6 |
80.1 |
5 |
23.6 |
24.5 |
77.6 |
72.3 |
6 |
24.1 |
70 |
48.3 |
102.1 |
7 |
32.2 |
33 |
78 |
71.2 |
8 |
18.9 |
47.5 |
72.2 |
83.3 |
9 |
22.1 |
54.2 |
60 |
81.1 |
10 |
24.3 |
38.1 |
64.2 |
79.2 |
11 |
21.1 |
73.3 |
84.2 |
78.2 |
12 |
21.1 |
34.7 |
86.9 |
78.8 |
13 |
14.5 |
39.8 |
76.2 |
73.8 |
14 |
12.5 |
63.1 |
86.1 |
74 |
AVG |
? |
? |
? |
? |
Directions:
Oh yea…When answering question, 9 (from the lab) use the "best fit" line to get your answers.