Question

I need help with the writing a paragraph of ``OBSERVATIONS`` part of the Lab report. It is a substituition and Elimination exp. Please see exp.details below:  

We started with 2.1 g of solid. Final mass after crystalization was 1.1g. Melting point of the product was 36.4 C. Therefore 2-napthyethyl ether formed based on BP. The product formed colorless crystalline solid.

Procdure: a solution of 1g of 2-naphtol was mixed with 4.0mL of 30% aqeous potassium hydroxide and 25 mL of methanol and 1.5 mL of ethyl iodinde. The solution was refluxed for 45 minutes. It was then cooled, filtered by suction filtration and washed out with water to obtain a solid. After weighting the it, the solid was recrystallized in a minimum volume of hot methanol solvent, filtered by gravity and then cooled to a room temperature. The solution was then cooled in an ice-bath and the crystals obtained were filtered by suction and washed in 2ml of cold methanol solvent. After drying the product, the melting point of the crystals was determined.

Answer 1

Observation :

In experiment we can observe that for getting pure product we can washed it by water. and this product is recrystalise with hot methanol solvent for purifying the non volatile organic solids present in it and for removing impurity. Therefore there is difference in weight of product and crystaline product.