Separation of cream from full cream milk using the Disc- Bowl Centrifuge. Introduction:- Cream is usually a dairy product containing high fat percent, which can be seen floating on the top before the homogenization process. When the milk is unhomogenized, overtime, the fat lighter in …
Table 1: Data Collection Table – Contains all of the primary data directly obtained from the lab. Indicator | Initial volume of NaOH in burette (ml) ±0. 05| Final Volume of NaOH in burette (ml) ±0. 05| Final – initial Burette Reading (Volume of NaOH …
Applied Heat past Examination Questions 1. An Ammonia refrigerator is to produce 2 tonnes of ice per day at -4°C from water at 20°C. if the temperature range in the compressor is between 25°C and -6°C, Calculate the horsepower required to derive the compressor. Latent …
I am going to investigate osmosis when potato is placed in different concentrations of sucrose. I am aiming to witness osmosis in 5 different concentrations of sucrose. I will use 5 varying concentrations so that I have a wider spread to compare the results, and …
Different types of thermometers Galileo thermometer. A Galileo thermometer (or Galilean thermometer), named after Italian physicist Galileo Galilei, is a thermometer made of a sealed glass cylinder containing a clear liquid and a series of objects whose densities are such that they rise or fall as the temperature changes. By definition, Galileo’s thermometer is actually …
Tutorial 1: Atomic Structure and Bonding in Solids 1. (a)Cite the difference between atomic mass and atomic weight. (b)Silicon has three naturally-occurring isotopes as shown in the table below. On the basis of this data, confirm that the average atomic weight of Si is 28. …
The evaporating of harmful gases, earthquakes, and some evidences from the manhole are the manifestations showed that an underground volcano was forming under the city. This means that there was already lava under the city and the ground cannot take the pressure anymore so it …
Recrystallization of Benzoic Acid Objective To purify benzoic acid by recrystallization and gain experience with a basic organic laboratory techniques. Background Products of chemical reactions are often contaminated with impurities. One method for purifying chemicals, recrystallization, takes advantage of the differences in the solubilities of …
Bacterial Morphology Demonica Britt Microbiology DL1 March 23, 2013 Abstract This lab was performed to identify and familiarize with a microscope while precisely observing various bacterial shapes and their arrangements in different types of specimens of bacteria. The microscope parts and capabilities were clearly identified …
Introduction The range of Infrared region Is 12800- 10 cm-l. It can be divided into near-infrared region (12800 – 4000 crn-ll mid-infrared region (4000 – 200 crnl ) and far-infrared region (50 ” 1000 cm-l). scientists have established various ways to utilize infrared light. Infrared …
Thermodynamics of the Dissolution of Borax Lina Jawadi Objectives: Study a system of salt and water solution. Determining a variety of important thermodynamics quantities from the solubility information at various temperatures. Background: The salt and water solution in this experiment has a relatively simple solubility …
University of Santo Tomas Faculty of Pharmacy Organic Chemistry Laboratory APPLICATION OF DIFFERENT KINDS OF TEST TO CLASSIFY HYROXY- AND CARBONYL-CONTAINING COMPOUNDS Jane Catherine SP. Villanueva, Edenn Claudine C. Villaraza, Lorenz Oliver C. Villegas and Cristel Bernice T. Wee Group 10 2G-Medical Technology Organic Chemistry …
Application of Fluorescence Spectroscopy in Chemical Oceanography: Tracing Colored Dissolved Organic Matter (CDOM) Erika Mae A. Espejo 3rd year, BS Chemistry, University of the Philippines, Diliman Abstract Dissolved organic matter (DOM), the fraction passing through a 0. 45 µm membrane filter, is considered poorly understood …
Meghann Kiphart AP Biology Lab Report Number One Mrs. Irvine Introduction: Because all molecules have kinetic energy and are constantly in motion cells go through a process called diffusion. Diffusion is the movement if molecules from an area of higher concentration to and area of …
Turn the tap on and drink a glass of water. Does it taste funny? Is it clear? The water you are drinking may be toxic without any such indicators. Water is all around us; it is essential for life. Over two thirds of earth’s surface …
CHEM. RES. CHINESE UNIVERSITIES China Abstract A sensitive, simple, and low-cost method based on capillary electrophoresis(CE) with electrochemical(EC) detection at a carbon fiber microdisk electrode(CFE) was developed for the determination of nicotine. The effects of detection potential, concentration, and pH value of the phosphate buffer, …
I. Introduction A. Topic Overview Carbon-intensive sources of energy (i.e. fossil fuels) are among the most used sources of energy to date. In fact, “more than 85% of all primary energy on earth comes from fossil fuels” (McGuigan, 2003). The rest are initiatives to use …
eInvestigating water potential of swede The aim of our experiment was to investigate the water potential of swede and then use our results to help us determine the water potential of plant tissue. This overall flow of water from a dilute area of high water …
Alex Wilson 9/11/12 Experiment #2 Separating the Components of Panacetin: Introduction: Of the three components likely to be present in your sample of Panacetin (aspirin, acetanilide, and starch), only starch is insoluble in the organic solvent dichloromethane (or methylene chloride), CH2 Cl2. If a sample …
Maria Sklodowska was Marie Curie’s birth name. She was born in a family of middle class. Both of her parents have been instructors at Warsaw during the Russian occupation. After being a participant of a certain revolutionary act when she was in her teenage years, …
Lab Design “Investigate the effect of a factor on the number of stomata of a leaf. ” Research Question How do differing leaf heights affect the number/density of stomata of a leaf? Hypothesis Stomata are pores, typically found under the leaf (lower epidermis), that control …
Lab 5Cellular Respiration Introduction: Cellular respiration is an ATP-producing catabolic process in which the ultimate electron acceptor is an inorganic molecule, such as oxygen. It is the release of energy from organic compounds by metabolic chemical oxidation in the mitochondria within each cell. Carbohydrates, proteins, …
Name: Derell Ruan Form: 4B1 SBA: Chemistry Aim: To determine which gas, Ammonia or hydrogen chloride defuses faster. Hypothesis: Ammonia will defuse faster than hydrogen chloride. Materials Equipment: Chemicals: 2 retort clamp and stand Ammonia 1 ? m glass tube 2 250cm3 beakers Cotton Wool …
Synthesis of Dulcin Objective: The main objective of this lab is to gain experience at a typical synthesis and semi-microscale recrystallization. Discussion Questions: How fast should the temperature be raised when determining a melting point? When can the temperature be raised more quickly? If there …
You can gain access to the elf menu, for the quantum lab, by clicking on the bell in the stockroom. The general features of the inorganic simulation include 26 actions that cam be added to test tubes in any combinations, 11 reagents that can be …
Chemical Engineering and Processing 41 (2002) 551– 561 www. elsevier. com/locate/cep Evaluation of steam jet ejectors Hisham El-Dessouky *, Hisham Ettouney, Imad Alatiqi, Ghada Al-Nuwaibit Department of Chemical Engineering, College of Engineering and Petroleum, Kuwait Uni6ersity, P. O. Box 5969, Safat 13060, Kuwait Received 4 …
Introduction Background of the Study Like many other hygiene convenience, shoe polish or can also be called boot polish is usually a wax , cream or paste used by people to shine, water proof and restore the appearance of leather shoes. This extends the footwear’s …
It all started with the manufacturing of flash light batteries in Calcutta by the Eveready Company Limited of Great Britain. Later on this company became a subsidiary of UCC headquartered in New York. The company later adopted the new name of Union Carbide India limited …
Abstract What is global warming? Global warming is the heating of the earth. Global warming happens when greenhouse gases such as carbon dioxide, water vapor, nitrous oxide, and methane trap heat and light from the sun in the atmosphere. This is known as the greenhouse …
Using the graph, estimate the time at which 50 percent of the leaf disks were floating on the surface. The point at which 50 percent of the leaf disks are floating will be you point of reference for future investigations Using the graph the estimated …
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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