Vinegar as Alternative Battery An Investigatory Project Presented to The Faculty of the High School Department Surigao Education Center Km. 2, Surigao City _______________________________________________ In Partial Fulfillment of the Requirements in Physics IV _______________________________________________ By: Edradan, Dhaniel Jefferson Yaun, Mary Allyssa Concon, Leonel Galos, Jancirfil …
Recrystallization is a common method of purifying organic substances through the differences in solubility at different temperature. In this experiment, acetanilide was produced by acetylation of aniline with acetic anhydride. The crude acetanilide was dissolved in a solvent in a heated water bath. The solution …
The reaction rate of the reaction plays an important role in the production of the ester which could affect the production of the ester. Esterification is a reversible reaction and thus this affects the amount of ester produced as ester hydrolysis changes it back to …
Hair coloring Definition of hair coloring: Hair coloring is the practice of changing the color of hair. The main reason for this practice are cosmetic, e. g. to cover gray hair, to change to a color regarded as more fashionable or desirable, and to restore …
Synthesis of Diphenylacetylene Observation of Results: 1,2-dibromo-1,2-diphenylmethane 0. 204g Diphenylacetylene 0. 087g Theoretical yield 0. 107g Percent yield 81. 3% Melting point range of diphenylacetylene 57- 60°C Average melting point 58. 5°C Average literature melting point 60. 0°C Percent error of melting point 2. 5% …
In biology, osmosis Is defined as the diffusion of solvent molecules (usually water molecules) across a semi-permeable membrane from a region of lower solute concentration to a region of higher solute concentration. Osmosis Is of great importance In biological processes where the solvent Is water. …
Statement of the Problem General problem How could we use coconut shells to come up to an activated carbon fiber? Specific problem What would be the duration of transforming the coconut shells to be activated carbon? How can activated carbon fiber help to filter air …
The effect of substrate concentration on the rate of enzyme activity of Catalase Aim To investigate the effect of substrate concentration (manipulated by increasing concentration of hydrogen peroxide) on the rate of enzyme activity of catalase, produced by liver cells, on the decomposition of hydrogen …
Trying to find a good, quantitative procedure that students can use for exploring photosynthesis is a challenge. The standard procedures such as counting oxygen bubbles generated by an elodea stem tend to not be “student” proof or reliable. This is a particular problem if your …
Rate of photosynthesis: limiting factors Limiting factors The main factors affecting rate of photosynthesis are light intensity, carbon dioxide concentration and temperature. In any given situation any one of these may become a limiting factor, in other words the factors that directly affects the rate …
[pic] Photosynthesis Outline Terms and Vocabulary Autotroph Photosynthesis Photon Pigment Chloroplast Reaction Center Electron Donor Molecule Electron Transport System Ferredoxin NADPH RuBP PGA Cuticle Stomata Rubisco Photorespiration C4 Pathway Concepts 1. What are two Adaptations of plant leaves for capturing light? 2. Describe the properties …
A molecule is a group of atoms bonded together that represent the smallest unit of a chemical compound that can take part in a chemical reaction. (http://www. dictionary. com) In kitchen chemistry today, there are many types of food molecules such as minerals, vitamins, fiber, …
Abstract In this study, we tested the validity of osmosis in artificial animal cells. Osmosis is the diffusion of free water across a membrane. The purpose of the study was to calculate the rate of osmosis in artificial cells containing different concentrations of sucrose and …
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 …
The Biological Importance of Water for Living Organisms Water is made up of two elements, 2 positively charged hydrogen molecules and one negatively charged oxygen molecule. Water molecules have uneven charge distribution as one end of the molecule is slightly positive and the other slightly …
Excretion is the removal of waste products of metabolism from our body system. Contents Excretory functions 2 Component organs 2. 1 Lungs 2. 2 Kidneys 2. 3 Ureter 2. 4 Urinary bladder 2. 5 Urethra 3 Urine formation 4 Reasons For Excretion The excretory system …
Isolation of Acetyleugenol (Clove Oil) from Cloves Purpose In this experiment, you will obtain the essential oil from cloves by steam distillation. You will then separate a component (acetyleugenol) from the oil by liquid-liquid extraction. Finally, you will isolate the acetyleugenol by using a rotovap …
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 …
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, …
Abstract Yeast is widely used for making bread, beer, and wine. People all over the world drink and eat those products. This projects looks at which fruit juice with a higher percentage of sugar will produce more fermentation. The original purpose of this experiment was …
Abstract This was an investigation into the effects of different wavelengths of light on methylene blue and carmine red on the absorbance value on a spectrophotometer. A spectrophotometer is used to measure light intensity by emitting a single light source through a cuvette of coloured …
For my science fair project, I figured out what solvent would work best to erase permanent marker. The solvents I tested were: lemon juice, vinegar, water, and rubbing alcohol. I tried each of these solvents on a permanent marker line on plastic, paper, fabric, and …
How does the atmosphere affect conditions on Earth? What is Earth’s atmosphere composed of? How do pressure and density vary with altitude? What are the characteristics of the major layers of the atmosphere? Important Terms atmosphere alarm pressure barometer troposphere weather stratosphere ozone layer mesosphere …
Abstract: In this experiment we were provided a cereal box spectrometer to observe the emission lines of noble gases and hydrogen. Based on the scale readings on the spectrometer and the Balmer-Rydberg formula, their wavelengths and percent error were able to be extrapolated. Based on …
BROMINATION OF ACETANILIDE OBJECTIVE Aim of the experiment was too brominate acetaldehyde to form p-bromoacetanilide. INTRODUCTION Acetanilide is a chemical compound with the chemical formula of C6H5NH(COCH3). It is a crystalline solid that is prepared by acetylation of analine and is widely used in the …
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 …
The Effects of Substrate Concentration, Reaction Time and Enzyme Concentration on Enzyme Reactions Corey von Ellm-St. Croix Rachael Kwan ID#: 20427841 Matthew Hrycyshyn & Saeideh Mayanloo Biol 130L, Section 017 Wednesday, 9:30am-12:20pm, 151 November 09, 2011 A living system controls its activity through enzymes. Enzymes …
Bubble quality Is most positively affected by the mixture of sugar and dish detergent due to the sticky consistency of sugar when emerged in liquid. Procedure: First of all, three cups were labeled according to their solution. Then, a teaspoon of dish soap and two-thirds …
Introduction The overall goal of this experiment is to understand and be familiar with SN1 reactivity. We also learned how to prepare 2-Bromobutane by learning how to distill and extract this product from its organic layer. Finally, another goal was to specifically understand the relative …
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 …
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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