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Module 1 Lab Report CHEM 1808
Follow the directions in the lab write up. Record the requested data below to submit for your lab. Only report the information asked for. Do NOT add rows to the data tables.
Data Table 1. or Egg results (6pts)
Time
Mass of Dialysis Tubing and Contents
0 minutes
17.2g
30 minutes
20.9g
60 minutes
25.2g
Questions (4pts)
A. In your experiment, is the in the dialysis tubing (or outside the egg) hypertonic or hypotonic? Explain your reasoning.
Hypertonic because the the mass over the given time as we can see in Table 1.
Exercise 2: Freezing Point
Data Table 2. Temperature Readings for Freezing Point. (10pts) **Remember your sig figs!
Time
(seconds)
Temp (C) of control (tap water)
Temp (C) of solution + 0.5 tsp (~2.5 mL) salt
Temp (C) of solution + 1.0 tsp (~5 mL) salt
30
4
2
0
60
3
1
0
90
3
1
-1
120
3
1
-1
150
2
1
-1
180
2
1
-2
210
1
1
-2
240
1
1
-2
270
1
1
-2
300
1
1
-2
330
1
1
-2
360
1
1
-2
390
1
1
-2
420
1
1
-2
450
1
1
-2
480
1
1
-2
510
1
1
-2
540
0
1
-2
570
0
0
-2
600
0
0
-2
Data Table 3. Graph of Data. (10pts)
Graph of Data
INSERT YOUR GRAPH ABOVE. THIS GRAPH CAN BE HANDDRAWN OR DRAWN WITH A PROGRAM LIKE EXCEL
Exercise 3: Colligative Properties: Boiling Point
Data Table 4. Temperature Readings for Boiling Point. (6 pts)
Temp (C) of control (tap water)
Temp (C) of solution + 0.5 tsp (~2.5 mL) salt
Temp (C) of solution + 1.0 tsp (~5 mL) salt
Temperature at Rolling Boil
101 C
104 C
106 C
Questions (4pts)
A. Compare the three boiling points. Is there a relationship between the amount of solute in the solution and the boiling temperature? Compare the three freezing points. Is there a relationship there between the amount of solute in the solution and the freezing temperature? to sum it all up.
When more solute is added it increased the boiling temperature of the solution where in freezing point when more solute is added, the colder the temperature got as time passes.
Temperature (C) vs. Time (sec)
y = -0.0055x + 3.1211
30.0 60.0 90.0 120.0 150.0 180.0 210.0 240.0 270.0 300.0 330.0 360.0 390.0 420.0 450.0 480.0 510.0 540.0 570.0 600.0 4.0 3.0 3.0 3.0 2.0 2.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.0 0.0 0.0
y = -0.0014x + 1.3842
30.0 60.0 90.0 120.0 150.0 180.0 210.0 240.0 270.0 300.0 330.0 360.0 390.0 420.0 450.0 480.0 510.0 540.0 570.0 600.0 2.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.0 0.0
y = -0.0028x – 0.7737
30.0 60.0 90.0 120.0 150.0 180.0 210.0 240.0 270.0 300.0 330.0 360.0 390.0 420.0 450.0 480.0 510.0 540.0 570.0 600.0 0.0 0.0 -1.0 -1.0 -1.0 -2.0 -2.0 -2.0 -2.0 -2.0 -2.0 -2.0 -2.0 -2.0 -2.0 -2.0 -2.0 -2.0 -2.0 -2.0
TIME (seconds)
TEMPERATURE C
