Essays on Chemical Reaction

Emulsion Polymerization of Styrene Abstract In the experiment performed, the aim is to polymerize Styrene. This is achieved using emulsion polymerisation with the use of persulfate as an initiator. The experiment resulted in a 73.8% yield. Introduction Polymers are synthesized by solution or emulsion polymerization methods. Emulsion polymerization is the most common process used to…

The purpose of this lab will be to brominate trans-stilbene by using acetic acid and pyrimidium tribromide by refluxing the mixture. To test the purity of product I will take the melting point which should be around 240 ºC along with a flame test which should be green-blue. CHEMICAL PROPERTIES TABLE See Attached Lab Notebook…

Qualitative analysis is used in the determination of the identity of a substance. It is different from quantitative analysis, which deals with the determination of the amount of a substance. In this experiment, qualitative analysis techniques are used to determine whether or not a sample contains a certain ion. When using this method, an unknown…

Introduction The purpose of the experiment was to oxidize and identify an unknown alcohol using hypochlorite, or household bleach. During the experiment, the bleach oxidized the secondary unknown alcohol into a liquid ketone which was distilled or boiled to find the boiling point and then identified using a chart of unknown identities and boiling points….

INTRODUCTION Vitamin C is a product that is usually found in many foods and produced by an abundance of chemical companies as dietary supplements. This vitamin is essential to the scurvy patients and used abundantly in cosmetic company due to its antioxidant properties. In the terms of its production, the fact that vitamin C has…

Experiment 12: Isopentyl Acetate 19 October 2012 Introduction: The purpose of this experiment is to prepare isopentyl acetate by direct esterification of acetic acid with isopentyl alcohol. After refluxing there is an isolation procedure where excess acetic acid and remaining isopentyl alcohol are easily removed by extraction with sodium bicarbonate and water. The ester is…

For my final project the first compound I synthesized was Dulcin. Dulcin is an artificial sweetening agent that is 200 times as sweet as sucrose. It is also, the second synthetic sweeter that was discovered. The first synthetic sweetener, saccharin, was discovered five years prior to Dulcin. The discovery of Dulcin occurred in 1883. Approximately…

CHEMISTRY (Theory) Time allowed : 3 hours General Instructions: (i) All questions are compulsory. Maximum Marks : 70 (ii) Marks for each question are indicated against it. (iii) Question numbers 1 to 8 are very short-answer questions and carry 1 mark each. (iv) Question numbers 9 to 18 are short-answer questions and carry 2 marks…

A uninterrupted moved armored combat vehicle reactor ( CSTR ) is a uninterrupted reactor that runs at a steady province. They are used most often with liquid stages. but can manage gas or solid reactions as good. No affair what the reactants are or the merchandise is. all CSTR’s have the same constituents. There is…

ynthesize my own aspirin Analyse the purity of my aspirin samples (aspirin and recrystallized aspirin) compared to commercial aspirin by use of analysing melting points, TLC plates and colorimetry tests Investigate how pH effects the rate of hydrolysis of aspirin Background theory Making my own sample of Salicylic acid (to then be converted into Aspirin)…