Analytical chemistry

New method of synthesis of oligoetherols with carbazole ring Renata Lubczak Abstract: The new method of synthesis of multifuntional oligoetherols with carbazole ring suitable for obtaining the polyurethane foams of enhanced thermal resistance was presented. At the first step of the synthesis the carbazole was reacted with excess glycidol to obtain the product of (n +1) functionality, where n is number of equivalents of glycidol reacted with carbazole. Carbazole reacts with glycidol without…

number of industrial processes such as in food, baking brewing, detergent, textile and paper industries. With new frontiers in biotechnology, the spectrum of amylase application has expanded into many other fields such as clinical, medical and analytical chemistry. (Saranraj and Stella, 2013) As the temperature increases, so does the rate of reaction. A very high temperatures will denature enzymes. The enzyme activity gradually increases with temperature…

Synthesis of Schiff base Method preparation for Schiff base ligand is a straight forward synthesis and easily modified using different amines and carbonyl compound. This could be one of the reasons that make Schiff base ligand popular in coordination chemistry research. Synthesis of Schiff base ligand commonly, taking place in alcohol through condensation reaction of amines and carbonyl compound. The acid/base catalysis or heating is employed in the synthesis of Schiff base as their reactions…

Identifying an Unknown Compound Using Various Chemical Analysis Techniques Joshua Nash and Aquilla Young Abstract The introduction of this lab report exposes the reader to the different scientific concepts that are to be used such as melting point calculations, retention factors, and solubility in various aqueous solutions. The experimental provides the basics of using a melting point apparatus, determining solubility, and performing thin layer chromatography. In the results section the findings…

Studies, Indian Institute of Technology, Delhi, New Delhi, India bCentre for Rural Development & Technology, Indian Institute of Technology Delhi, New Delhi, India c Department of Chemistry, School of Basic and Applied Sciences, Galgotias University, India Abstract This paper deals with the formulation of castor biodiesel (CB) at optimum condition by single step base catalysed transesterification reaction. The produced ester…

How the changing mass of solute effects the heat given out when dissolved in water Aim To investigate how the changing mass of a solute will affect the energy given out. Introduction Dissolving is when a solute is mixed into a solvent to form a solution. Dissolving can be either endothermic or exothermic. Endothermic reactions happen when the energy given out when bonds are broken, is greater than the energy given out when bonds are made. As more energy is used and taken in, the surroundings…

The purpose of this experiment is to observe the difference between ionic and molecular compounds using conductivity as a means of analysis. This lab will allow us to organize compounds based on the magnitude of their conductivity. This will allow us to determine whether or not a compound is molecular or ionic based on its conductivity. This lab also will determine the effect of concentration on conductivity of certain electrolytes, as well as the number of ions. We also will examine the effect…

dangerous situations, even though they are not proven to increase our probability of a specified event. George Gmelch and Richard Felsen released an article pertaining this subject. The article, entitled “Can a Lucky Charm Get You Through Organic Chemistry”, gave the general public a somewhat easy-to-read article, which provided an experimental result about how many people believe in magic and what they believe about it. By analyzing the article, it can be seen that the experiment covered…

THE EFFECTS OF OSMOSIS INTRODUCTION Osmosis is the process where molecules of a solvent are prone to pass through a semi-permeable membrane, going from a less concentrated solution to a higher concentrated solution. Doing this equalizes the concentrations on both sides of the membrane. Our question throughout the experiment was; What effects do the different concentrations of sucrose have on the rate of osmosis? The hypothesis was; If the solute concentrations do effect the rate of osmosis,…

The experiment was done to reveal how workouts supplements like C4 can affect the development of humans. Other experiments like this one can also be used to show how some substances may affect the development of humans. In the experiment the independent variable was the amount of the C4 that was placed into each well in the experiment, and the dependent variable was the zebrafish embryos after they were exposed to the C4. In addition, 2 controls were set up, containing a ocean/embryo solution…