General Chemistry Laboratory Series
Published:
Overview
Performed 6 hands-on chemistry labs covering purification, analysis, and thermodynamic measurements.
Experiments Conducted
1. Recrystallization Purification
- Purified unknown organic compounds using recrystallization technique
- Achieved 32.9% recovery
- Identified substance as Acetanilide through mixed melting point analysis
2. Gravimetric Analysis
- Determined empirical formula of magnesium oxide
- Achieved 15.9% error margin
3. Dumas Method
- Calculated molecular weight of volatile liquids using ideal gas law
- Result: 74.6 g/mol
4. Calorimetry
- Measured specific heat capacity of copper (0.33 J/g°C)
- Measured specific heat capacity of glass (0.66 J/g°C)
5. Hess’s Law Application
- Determined enthalpy of reaction for Mg + H₂O system
- Result: -305.3 kJ/mol
Technical Skills
Gravimetric Analysis, Calorimetry, Recrystallization, Thermodynamics, Laboratory Techniques