Isolation of trimyristin from nutmeg Purpose: The purpose of this lab is to isolate and recrystallize trimyristin from nutmeg via a simple extraction using tert-butyl methyl ether (TBME). Trimyristin is then hydrolyzed to isolate myristic acid, the fatty acid of trimyristin. Reaction Scheme: Scheml.Hydrolyoftrimyrist Experimental …
STEREOCHEMISTRY: ADDITION OF BROMINE TO trans-CINNAMIC ACID Required Prelab Readings:McMurry Chapter 5, Sections 8. 2 & 21. 2 Morhig, Sections 7. 1 and 7. 3. Previous techniques that you must know and be able to perform: Suction Filtration and Melting Point This experiment is designed …
Multi-Step Synthesis of Benzilic Acid from Benzoin Abstract: The main purpose of this experiment was to convert a secondary alcohol to a ketone, utilizing a mild and selective oxidizing agent. In addition, this converted alpha diketone was then subjected to rearrangement to a carboxylate salt, …
Cellular respiration is defined as an enzyme mediated process in which organic compounds such as glucose is broken down into simpler products with the release of energy (Duka, Diaz and Villa, 2009). It is a series of metabolic processes and oxidation-reduction reactions. Oxidation of substrates, …
CHAPTER 4 REACTIONS IN AQUEOUS SOLUTION MULTIPLE CHOICE QUESTIONS 4. 1Which of the following compounds is a strong electrolyte? E A. H2O B. O2 C. H2SO4 D. C6H12O6 (glucose) E. CH3COOH (acetic acid) Answer: C 4. 2Which of the following compounds is a strong electrolyte? …
Marisela Andrade The Effects of Salt Water on Gummy Bears Facilitated diffusion depends on passive transport. Molecules cross cell membrane by diffusion. A type of diffusion is osmosis. If no energy is input into the system during diffusion, the molecules will reach a state of …
Every living thing respires in some way. There are two forms of respiration, aerobic and anaerobic. Areobic respiration only takes place in the presence of oxygen and is a far more efficient way for complexed organisms to convert carbohydrates into energy. There are four stages …
Today there is much advancement in the cosmetic world. There are also many scientist (that go back to the ancient Romans) that have invented and experimented with chemicals to produce what we know have today. Eugene Schueller is one of those chemists that helped advance …
Abstract This experiment is to determine the concentration of oxidizing solution using the iodine/ thiosulphate titration where the reducing solution is potassium iodate solution and the oxidizing solution is sodium thiosulphate solution. Potassium iodate solution which is an oxidizing agent is added into an excess …
Introduction: The theory behind the extraction of a solution containing benzoic acid, cellulose, and methyl orange involves many components pertaining to the fundamental ideas of solubility and polarity. Using the concepts of like dissolving like and acid base reactions, a solution of organic acid (benzoic …
Everything is made up of tiny particles called atoms. The atoms are made up of even smaller parts called protons, electrons and neutrons. Protons have a positive charge (+), electrons have a negative charge (-) and neutrons have no charge at all, they are neutral. …
Determination of the Concentration of Acetic Acid in Vinegar Lab Exercise 4 CHEM 1106 9/19/12 Purpose: Standardize a sodium hydroxide solution using a primary standard acid. Determine the molarity and the percent by mass of acetic acid in vinegar by titration with the standardized sodium …
Describe the fluid-mosaic model of a plasma membrane. Discuss the role of the membrane in the movement of materials through it by each of the following processes: Active transport Passive transport The plasma membrane is a semi permeable barrier that separates the inside of the …
Introducing with Biochemical Cycles Biochemical cycles Nutrients are important for organisms to function. Each nutrient has a role in global biogeochemical cycles. A nutrient is a chemical that organisms need to live and grow and are substances an organism’s uses for metabolism which must be …
CHAPTER I INTRODUCTION 1. 1 Background Food is one of human sources of calorie, protein, fats, and nutrition. Yet, because of the highly nutritious content, food is susceptible to growth of microorganisms. By the presence of microorganisms in food, the food is more likely to …
Hydrogen peroxide is a bleaching agent with antimicrobial effects [Gaffar, 1997] that has been used historically, at high concentrations, for the treatment of severe gingivitis. It is an effective bleaching agent that can penetrate enamel to bleach intrinsic stains. Papain is a naturally occurring enzyme …
EXPERIMENTAL SCIENCE PROJECTS:The Effect of Salt on the Boiling Temperature of Water(Initially prepared by a 4th Grade student)To quickly jump to a section below click on:INITIAL OBSERVATIONCooking instructions tell you to add salt to water before boiling it. PROJECT TITLEThe Effect of Salt on the …
Importance of Surfactant Introduction Surfactant is an essential component for the respiratory system to function properly. Knowing the physiology of surfactant in the alveoli is important to know when learning the structure of the air sacs and how they work. This experiment is designed to …
The place I decided to do my paper on is located in the living room of my family’s house. It is a one hundred gallon aquarium. The reason I chose this as the topic of my paper is that all kingdoms are present except for …
Investigation of the point of incipient plasmolysis of onion cells (Allium cepa) using NaCl (Sodium Chloride) concentrations of 0. 1M, 0. 2M, 0. 3M, 0. 4M, 0. 5M, 0. 6M Design Research Question (Aim): The aim of this lab was to determine the point of …
Purpose The chromatography lab is to understand how molecules with similar molecular properties can be separated with paper chromatography. These differences will be interpreted to see the distinction of separate chemical substances. (more…)
Heat does to matter is changes it state. There is something more subtle though that can cause big problems. Look at this devise. When you heat both this ball and the ring the ring expands like a long bar of metal. The ball expands less …
Introduction The purpose of this experiment is to demonstrate an example of how to determine the unknown molarity of hydrochloric acid by titration with a base (sodium hydroxide). Titration is a common laboratory method of quantitative chemical analysis that is used to determine the unknown …
Benzene is a chemical compound of the hydro-carbon group. It is a colorless liquid with a characteristic odor and burning taste, formula C6H6. The benzene molecule is a closed ring of six carbon atoms connected by bonds that resonate between single and double bonds; each …
Syl Rogers Bio 210 Comparing Fermentation Rate of the S. cerevisiae Yeast in the presence of MgSO4, NaF and Sodium Pyruvate Hypothesis In the fermentation of rate of yeast, S. Cerevisiae, there will be a higher/ faster rate of ethanol production, However, using catalytic enzymes …
Wh Mia Foust Mr. Dunlap Honor Chemistry, Per 7 December 21, 2010 Glow Sticks Since glow sticks have been invented, consumers have wondered how scientists are able to create these magical sticks of light. They work without producing heat. They don’t need a battery or …
Theory: Photosynthesis is a process carried out in plants, in the photosynthetic organ which is the leaf. CO2 + H2O –> (CH2O)n + O2 A plant takes in CO2 and H2O and absorbs sunlight in order for photosynthesis to take place. These reactants then travel …
For polysaccharide extract a. Repeat procedure A. 2a – A. 2d with 10 mL of the polysaccharide extract from Expt. 6 but use 10 drops conc. HCl. B. General Tests for Carbohydrates Test the ff. carbohydrate solutions: 1% glucose, fructose, maltose, sucrose, lactose, agar-agar, gum …
The experiment conducted, isolation of eugenol from cloves, is the extraction of the essential oil. To perform this experiment cloves and water were mixed together and heated by a heating mantle in a round-bottom flask. A direct stem distillation took place, and the oil product …
Combustion of Gummy Bears Energy is a concept.? Most definitions of the word energy fail to provide its exact meaning when applied to scientific matters.? In science the word energy is a concept that expresses two measurable properties, heat and work.? Here is the relationship …
Conjugation
The word "conjugation" is derived from a Latin word that means "to link together". In organic chemistry terms, it is used to describe the situation that occurs when π systems (e.g. double bonds) are "linked together". An "isolated" π (pi) system exists only between a single pair of adjacent atoms (e.g. C=C)
Kinetic energy
Kinetic energy is the energy associated with objects in motion. Potential energy is the type of energy associated with an object's potential to do work. Chemical energy is the type of energy released from the breakdown of chemical bonds and can be harnessed for metabolic processes.
Physics
Chemical physics is concerned with the application of the concepts and theories of physics to the analysis of chemical systems and their physical behaviour. While also at the interface between physics and chemistry, it is distinct from physical chemistry.
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