“During peace time a scientist belongs to the world, but during war time he belongs to his country”-Fritz Haber Here lies the ashes of the famous chemist Fritz Haber and his first wife Clara. Fritz had a heart attack and managed to recover, but not …
Aim The main intention of this investigation was to determine the various stages of the Atterberg Limits. These included the liquid limit test (LL), plastic limit test (PL), plastic index test (PI), and linear shrinkage (LS) of a soil sample provided by the administration. This …
Enzymatic Activity of Salivary Amylase Ong, Janela Rose I. ; Paguia, Maria Tricia C. ; Placente, Dax Daven A. ; Posadas, Grace Catherine A. 3Bio3-Group 8 Department of Biological Sciences, College of Science University of Santo Tomas, Espana, Manila 1008 Abstract This experiment aims to …
Experiment. EDTA Titration of Ca2+ in an unknown solution Experiment. EDTA Titration of Ca2+ in an unknown water sample Modified 9/2012 Objective: The most common multivalent metal ions in natural waters are Ca2+ and Mg2+. In this experiment, you will find the total concentration of …
A sample of oxygen of mass 25. 0 g is confined in a vessel at 0°C and 1000. torr. Then 6. 00 g of hydrogen is pumped into the vessel at constant temperature. What will be the final pressure in the vessel (assuming only mixing …
Introduction In this lab, we are going to learn how the stress of temperature affects fresh beets. We have come to learn that cell membranes organize the chemical activities of cells. All cells are made of plasma membranes, often called fluid mosaics. It is sometimes …
As a result of numerous consumer complaints of dizziness and nausea, Promofoods requested that eight million cans of tuna be returned for testing last year. Promofoods concluded that the cans did not, after all, contain chemicals that posed a health risk. This conclusion is based …
SMART Materials A SMART material is a material that is affected by outside influence. Polymorph * Type of thermoplastic (can be reshaped many times). * Normally supplied in form of granules or small plastic beads. * Low fusing temperature of around 60°C. This means it …
Acid-Base Titration Objectives: 1. To titrate a hydrochloric acid solution of unknown concentration with standardized 0. 10M sodium hydroxide. 2. To utilize the titration data to calculate the molarity of the hydrochloric acid. Materials: See handout for more info. Procedure: See handout for more info. …
Heavy metal contamination of water has become an important problem in recent years. Most hazardous heavy metals exist in environmental water in trace or ultra-trace amounts, which requires establishing highly sensitive analytical methods. In this research, quantitative analyses were performed using atomic absorption spectrometry to …
Medium formulation is an essential stage in the design of fermentation process. Most fermentation media require liquid media, although some solid-substrate fermentations are also operated. Fermentation media must satisfy all the nutritional requirements of the microorganisms and fulfill the technical objectives of the process. There …
Temperature and Its Effects on Respiration in Plants and Animals Introduction Cellular respiration is the process of breaking down organic compounds to create usable energy for plants and animals. Energy that results from this metabolic process is stored in the form of ATP (adenosine triphosphate) …
Determination of the Percent Acetic Acid in Vinegar Objectives: (1) To introduce and use the concept of solution geochemistry (2) To specifically use solution geochemistry to determine the percent of acetic acid in vinegar. (3) To prepare a standard solution by the method of titration. …
Introduction The high frequency of occurrence of bloodstains at crime scenes has resulted in an increased need for sensitive identification methods. In the case of wildlife forensic evidence, this translates to specific techniques capable of identifying the source species (animal) of a bloodstain. Standard techniques …
Daniel Rutherford Jacobus Henricus Walther Hermann Nernst Reinhold Benesch & Ruth Erica Benesch Find How Oxygen is Transported in Human Body Frederick Soddy Artturi Ilmari Virtanen Louis Jacques Thenard discovers hydrogen peroxide Jbir ibn Hayyn Ya’qub Al-Kindi Paul Karrer Antoine-Laurent de Lavoisier Few things are …
This assignment will describe the role of energy in the body and explain the physiology of two named body system in relation to energy metabolism. It will explain where energy comes from, how the body uses energy, what is metabolism/catabolism and anabolism and also it …
Henry Moseley: An Annotated Bibliography Todd Helmenstine (November 23) November 23 Science History. Retrieved from: http://chemistry. about. com/od/novemberinscience/tp/november23history. htm In this short analysis of Moseley’s accomplishment, Helmenstine basically summed up the most important facts about Henry Moseley and his discoveries. He shows how Moseley proved …
Determination of Manganese in Steel Submitted by: ——————- Date of Submission: 27. 03. 11 Objectives: In steel production aside the iron, which is the primary source, some amounts of manganese is used together with carbon. The objective of this experiment is determining the manganese amount …
Membrane Structure and Function Concept 7. Cellular membranes are fluid mosaics of lipids and proteins The large molecules of all living things fall into just four main classes. Name them. Explain what is meant when we say a molecule is amphipathic. In the 1960s, the …
Abstract Four pure, unidentified cultures of (gram positive cocci) bacteria, labelled A-D were cultured on various agar media. Also an API test was simulated to identify another unidentified bacterium. Identification of bacteria is important when choosing an effective treatment for a microbial-causing illness. This experiment …
Introduction Many people nowadays are urged to be aggressive, to get ahead of the rest and to be number one. We are pulled by media toward self-centered pleasures. So many commercials show us a lifestyle of pleasure and according to them can makes us happy. …
When air gets polluted with dust, smoke, motor vehicles, mills and factories etc. is called air pollution. We know that air is an important element of our environment. But it is a matter of great regret that it is being polluted day by day in …
CALCULATIONS Determining the amount Limiting Reagent used. nlimiting reagent = Molarity x Volume or Mass / Molar Mass Example: Limiting reagent is 5mL of 1. 0 M HCl nlimiting reagent = Molarity x Volume nlimiting reagent = (1. 0 [mol/L]) x 0. 005 [L]) = …
Human understanding to the world of the minuscule atoms had changed over the passing of time. Several scientist physicists had almost devoted their entire life in order to achieve a better view to the building blocks of matter. Numerous persons had attained to be acknowledged …
Energy FROM WASTE ( EfW )IntroductionEnergy from waste is a construct that is going more relevant to society as the general consciousness of energy efficiency and waste direction additions in the public sphere. It merely means that waste generated from families, industries and commercialism is …
Stomata are tiny pores found on the epidermis of the leaf, surrounded by guard cells. [1] Their main function is gas exchange [1] for photosynthesis and respiration. The development of stomata on the leaves of a plant is determined by interaction between different genes and …
Get out 5 separate cups or beakers and fill them full with water in each. Number each of the cups 1 through 5. And color accordingly with food dye: Cup 1- 2 drops of yellow Cup 2- 2 drops of red Cup 3- 2 drops …
What is cement? Cement is a fine powder which sets after a few hours when mixed with water, and then hardens in a few days into a solid, strong material. Cement is mainly used to bind fine sand and coarse aggregates together in concrete. Cement …
The Biological Importance Of Water Water plays a huge role in our lives, the molecule which is comprised of two atoms of hydrogen and one atom of oxygen bonded together has many complex properties. The molecule maintains a bent shape due to its tetrahedral arrangement …
Defective and obsolete electronic equipment. Electronic waste, e-waste, e-scrap, or waste electrical and electronic equipment (WEEE) describes discarded electrical or electronic devices. There is a lack of consensus as to whether the term should apply to resale, reuse, and refurbishing industries, or only to product …
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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