Given the data and graph answer the following questions: 1.) What is the freezin
ID: 568856 • Letter: G
Question
Given the data and graph answer the following questions:
1.) What is the freezing point of the solution?
2.) What is the average freezing point of the solution?
3.) What is delta t in degrees c?
4.) What is the molality of the unknown?
5.) What is the molar mass of the unknown?
Temp (c)
Time (sec)
2.0
0
2.0
30
3.5
60
6.0
90
7.0
120
8.5
150
10.0
180
11.0
210
11.5
240
12.5
270
Temp (c)
Time (sec)
2.0
0
2.0
30
3.5
60
6.0
90
7.0
120
8.5
150
10.0
180
11.0
210
11.5
240
12.5
270
co Temperature () O 2012 Pearson Education, IncExplanation / Answer
if the inial state is solid then 2 degree celcius is the freezing point because it doesn't change wrt time as it was absorbing latent heat during that time.
Avg freezing time is 2 degree celcius.
delta t = 12.5 - 2 = 10.5 degree celcius
molarity or molar mass can't be obtained by merely seeing this graph.
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