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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Question
Explain the difference in solubility of your unknown in water compared in water compared to other solvents.
Transcribed Image Text:**Distillation and Boiling Point of Unknown**
- Unknown compound assigned: C
- Temperature at distillation fraction A (°C): 59
- Temperature at distillation fraction B (°C): 67
- Temperature at distillation fraction C (°C): 69
- Temperature when unknown started to boil (°C): 59
- Temperature when boiling of unknown is stabilized (°C): 67
**Density and Solubility of Unknown**
- Density test: volume of unknown distillate fraction B (mL): 0.25
- Density test: mass of unknown distillate fraction B (g): 0.180
- Solubility test: volume of unknown distillate fraction B (mL): 1.0
- Solubility test: volume of water mixed with unknown (mL): 2.0
- Solubility test: Number of layers of unknown with water: 2
**Characterization of Assumed Known**
- Organic compound assumed to be unknown: Hexane
- Temperature when known started to boil (°C): 60
- Temperature when boiling of known is stabilized (°C): 66
- Density test: volume of known sample (mL): 0.25
- Density test: mass of known sample (g): 0.180
- Solubility test: volume of known sample (mL): 1.0
- Solubility test: volume of water mixed with known sample (mL): 2.0
- Solubility test: Number of layers of known with water: 2
Transcribed Image Text:## Summary of Comparing Unknown and Assumed Known
### Observed Boiling Point of Unknown Compound
- **59.0 – 67.0 °C**
### Observed Boiling Point of Known Compound, Hexane
- **60.0 – 66.0 °C**
---
### Density Comparison Calculations
*Details on density calculations would typically follow this section, comparing the densities of the unknown compound with Hexane to determine similarities or differences.*
*Note: The image does not contain any graphs or diagrams.*
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