Experiment 10: Cholesteryl Benzoate and Acetanilide

Report Evaluation TOTAL

Chem 209 Lab Report

Student Name______Date______

Student ID #______Section______

A-Synthesis of Cholesteryl Benzoate

I-Purpose:

II-Main Reaction(s) and Mechanism(s): III-Table of Reagents/Products:

Compound Formula M.Wt. Mass Density Volume Melting Boiling # of (g/mol) (g) (g/mL) (mL) point point moles (ºC) (ºC)

IV-Results:

Limiting Exp. Yield Theo. Yield % yield Melting point Mixed Reactant (g) (g) (ºC) Melting (experimental) point (ºC)

V-Observation:

VI-Discussion of results: VII- Question:

1- What changes in appearance of your product when it is heated and cooled suggest that it has ‘liquid crystal’ properties?

2- Name thee different compounds, besides cholesteryl benzoate, that show liquid crystal properties, and draw there structures. What can you deduce from the structure?

B- Synthesis of Acetanilide

I-Purpose:

II-Main Reaction(s) and Mechanism(s): III-Table of Reagents/Products:

Compound Formula M.Wt. Mass Volume Melting Boiling # of (g/mol) (g) (mL) point point moles (ºC) (ºC)

IV-Results:

Limiting Exp. Yield Theo. Yield % yield Melting point Reactant (g) (g) (ºC) (experimental)

V-Sample Calculation:

VI-Discussion of results: