Using Microsoft Excel graph your results to create two cooling curves: one for pure cyclohexane, and one for cyclohexane with solute. Remember to choose and label the appropriate axes, give the graph a title. Identify the freezing point on both graphs. Copy and paste the graphs from excel into the word document.
Using Microsoft Excel graph your results to create two cooling curves: one for pure cyclohexane, and one for cyclohexane with solute. Remember to choose and label the appropriate axes, give the graph a title. Identify the freezing point on both graphs. Copy and paste the graphs from excel into the word document.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:**Data from Take-Home Lab Worksheet:**
**Pure Cyclohexane**
| Time (seconds) | Temperature (°C) |
|----------------|------------------|
| 0 | 24.0 |
| 30 | 11.0 |
| 60 | 10.0 |
| 90 | 8.0 |
| 120 | 7.0 |
| 150 | 6.0 |
| 180 | 6.0 |
| 210 | 6.0 |
| 240 | 6.0 |
| 270 | 6.0 |
**Cyclohexane and Naphthalene**
| Time (seconds) | Temperature (°C) |
|----------------|------------------|
| 0 | 20.0 |
| 30 | 9.5 |
| 60 | 6.0 |
| 90 | 2.5 |
| 120 | 0.5 |
| 150 | -1.0 |
| 180 | -1.0 |
| 210 | -1.0 |
| 240 | -1.0 |
| 270 | -1.0 |
---
2. **Instructions for Graphing:**
Using Microsoft Excel, graph your results to create two cooling curves: one for pure cyclohexane, and one for cyclohexane with solute. Remember to choose and label the appropriate axes, give the graph a title, and identify the freezing point on both graphs. Copy and paste the graphs from Excel into the Word document.
3. **Freezing Point Depression:**
How much was the freezing point affected by the addition of the solute? (In this case, ΔT_f is the difference between the freezing point of the pure solvent and the freezing point of the solution.)
ΔT_f = _____
Note: Graphs are necessary for visualizing the cooling process and determining the freezing points, highlighting the colligative property effect of the solute on the freezing point of the solvent.
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