Introduction Chemical reactions are how new forms of matter are made. While nuclear reactions also may produce new matter, nearly all the substances you encounter in daily life are the result of chemical changes. Chemical reactions help us understand the properties of matter. By studying the way a sample interacts with other matter, we can learn its chemical properties. These properties can be used to identify an unknown specimen or to predict how types of matter might react with each other. By
The rate of chemical reaction is defined as the change in concentration of a reactant or product in a given time. At the start, the rate of reaction is the fastest due to the concentration of reactants being the greatest. As the reactant proceeds, the rate of reaction slows down as the concentration decreases; the reaction stops. The collision theory states that in order for a reaction to take place, molecules must collide and when a molecule collides, a reaction takes places once all the conditions
Acid-Base Titration Lab Report By Andjela Mandic 11/24/14 Period 1 Purpose: The purpose of this experiment was to find the molarity of a sodium hydroxide (NaOH) solution by titrating it with a Hydrochloric Acid (HCl) solution. Materials: Burets (50mL), Buret Stand, Buret Clamp, Graduated Cylinder (10mL), Erlenmeyer Flask (125mL), Index Card, Beakers (250mL), Safety Goggles, Aprons, 0.100M HCl (standard solution), NaOH (concentration unknown), Distilled Water, Indicator (bromothymol
Preparation of Polyamide: Nylon 6,6 Kaisha Butz Lab Partner: Maulik Patel Instructor: Dr. Beatrix Aukszi LA: Isabel Olivera 02/05/2015 Abstract: The purpose of the lab was to react the resultant acid from the previous week and a nucleophile to obtain an acid chloride, and from there to do another reaction in order to form nylon. It was hypothesized that if the adipic acid was reacted with thionyl chloride that adipoyl chloride would be formed. It was also hypothesized that when the
Enzymes: Chemical Degradation of Albumin through Light Absorbance Mariel Melchor, Itzae Facio, Sarahi Iturriaga, Sarai Chairez, Evelyn Tovanche University of Texas at El Paso BIOL 1107 October 9, 2014 Horacio Gonzalez Abstract In this enzyme lab, we worked to observe enzymatic activity by measuring how fast pepsin degrades albumin by observing the changes in absorbance of albumin using a spectrophotometer. The wavelength set through a spectrophotometer is the controlled variable
affects the physical and chemical traits, of the Cannabis genus? Supporting questions surrounding our main research question include: Is there conservation within the paralogs of THC Synthase? Do these paralogs produce functional proteins? Are certain paralogs unique to certain strains? We will be researching duplicated genes of THC Synthase that recently became prevalent due to new sequencing abilities and an assembly of the cannabis genome given to our lab by Steep Hill Labs, Inc. We will be conducting
test tube. • The test tube is then placed carefully in the 250 ml flask. It was made sure that the cold water in the flask covers about 2 cm of the bottom of the test tube. • The coiled copper wire is then placed carefully in the test tube. This reaction must be performed in fume hood and students must not inhale the toxic brown gas that is produced. The remaining nitric acid is then added slowly to the test tube that is placed in the flask to dissolve the copper wire completely. • Approximately
dream was to work in medical field, I always explored something that relates food, nutrients, and human health. Finally, I was pondering to read an article in 2010 in daily star heading ‘Toxic poultry feed poses health risk'. I came to know from the report that poultry and fish feed possessed by tannery waste which is a serious health risk for consumers because contaminants directly entering the food chain. After reading that article, I have a lot of question into my mind. What happen if heavy metals
pests/insects, unclean cork/cap etc… Chemical hazards: Surplus quantities that everyone use for cleaning purposes where most of the tools used in factories are cleaned on spot by the aid of huge amounts of sanitizers that in turn destructively shake the product to be produced. This case requires a good post-sanitation washing. Moreover, the incidence of bottles positioned unlabeled underneath some machines leads to catastrophic finishes. In other words, all chemical related bottles are to be put in an
compounds have special properties that make them to react differently than other molecules. The conjugated compound of dienes in aromatic rings give an extra stability to undergo addition reactions