smileshaikh
Apr 7, 2010, 07:25 AM
I'm doing a lab and we used naphthalene.
Here's some data:
Mass empty test tube:30.967g
Mass test tube plus naphthalene:40.545g
Mass naphthalene taken:9.578g
Freezing point of naphthalene (from graph)
As for the freezing point of naphthalene, how do I get it? It says from graph, but which graph? I know I'm supposed to plot a graph with the temperature vs the time in C... but where in the graph do I get it? Here's my times and temperatures just in case they're needed...
Time in Minutes and Seconds Temperatures in ○C
0:30 95.1
1:00 88.7
1:30 84.5
2:00 80.9
2:30 79.3
3:00 79.3
3:30 79.4
4:00 79.3
4:30 79.2
5:00 79.3
5:30 79.2
6:00 79.2
6:30 79.1
7:00 79.1
7:30 79.0
8:00 79.0
8:30 798.0
9:00 78.7
9:30 78.6
10:00 78.4
10:30 78.1
11:00 77.6
11:30 77.4
12:00 76.6
12:30 75.6
13:00 74.4
13:30 72.9
14:00 70.7
14:30 68.5
15:00 66.1
15:30 63.6
How do I get the freezing point of naphthalene?
Here's some data:
Mass empty test tube:30.967g
Mass test tube plus naphthalene:40.545g
Mass naphthalene taken:9.578g
Freezing point of naphthalene (from graph)
As for the freezing point of naphthalene, how do I get it? It says from graph, but which graph? I know I'm supposed to plot a graph with the temperature vs the time in C... but where in the graph do I get it? Here's my times and temperatures just in case they're needed...
Time in Minutes and Seconds Temperatures in ○C
0:30 95.1
1:00 88.7
1:30 84.5
2:00 80.9
2:30 79.3
3:00 79.3
3:30 79.4
4:00 79.3
4:30 79.2
5:00 79.3
5:30 79.2
6:00 79.2
6:30 79.1
7:00 79.1
7:30 79.0
8:00 79.0
8:30 798.0
9:00 78.7
9:30 78.6
10:00 78.4
10:30 78.1
11:00 77.6
11:30 77.4
12:00 76.6
12:30 75.6
13:00 74.4
13:30 72.9
14:00 70.7
14:30 68.5
15:00 66.1
15:30 63.6
How do I get the freezing point of naphthalene?