To prepare boric acid from sodium deteriorate (borax) To carry out tests on the prepared sample of boric acid To study the physical and chemical properties of boric acid Introduction: Boron is an element in the p-block of the periodic table. It has the electron …
Photosynthesis Essay During the Light Dependent Reactions, activity occurs within the thylakoids of the chloroplast. NADP+ accepts two high energy electrons and an H+ ion and then converts into NADPH. This process ultimately traps some of the sunlight in chemical form. Then, NADPH is able …
Assessment of synthetic milk exposure to children of selected population in Uttar Pradesh, India Shuchi R. Bhatt1, Dr. Anita Singh2 and S. M. Bhatt3 (Abstract) The present study was carried out keeping in view the recently emerging concern of the adulteration of the natural milk …
Density determination by pycnometer is a very precise method. It uses a working liquid with well-known density, such as water. For the purpose of this experiment, distilled water was used. The pycnometer is a glass flask with a close-fitting ground glass stopper with a capillary …
This essay will outline the functions of the main cell components, these consist of the nucleus, nuclear membrane, mitochondria, lysosomes, Golgi apparatus, cell membrane, ribosomes, cytoplasm and endoplasmic reticulum both rough and smooth. Images: [3] Every human body has billions of microscopic units called cells. …
Chemical Reaction between Tin and Nitric Acid Introduction: Finding the products made from the components of tin metal and nitric acid is the ultimate objective of this lab; the formula of the products will be found in the CRC handbook thereafter. Procedure: First, obtain a …
Aim What are the factors responsible for land pollution in the community of East Dry River Port of Spain, Trinidad? Method of Data Collection How was the data collected? Attempts were made to walk around the street with bags in search of rubbish within #50 …
Study guide questions: Movements through membrances 1. Prepare a graph that illustrate the diffusion distance of potassium in 10 minutes 2. Explain your graph : 3. Define simple diffusion: 4. Define osmosis: Osmosis can be defined as the movement of solvent molecules across a semipermeable …
The earth’s crust is the thin layer of rock which makes up to one percent of the whole planet and can range between 1 kilometer and 80 kilometer in different (Alden, 2010). The crust is made of two important types of rocks namely the basaltic …
“Respiration” and “Photosynthesis” All life depends on two chemical reactions “Respiration” and “Photosynthesis”. These two processes are quite crucial because they are a source to nearly all life on Earth. Both of these processes are quite similar yet differentiate vastly. In this essay I’ll be …
Molecular Geometry I – Investigation using Models (SL) (DCP Lab) Taksh Shah KIS International School Chemistry (SL) 1 Introduction For this investigation we had use molecular models and make the following structures: Symbol Name of Species Lewis Diagram Model Bond Polar or Angle (°) Non-Polar …
Introduction In this coursework I will be talking about the experiments, which I have done over two weeks. This gave different results by using different concentrations of hydrochloric acids (HCl) and indigestion relief tablet. I will also mention the time which was taken in the …
Abstract The purpose of the study is to synthesize salicylic acid from the ester, methyl salicylate, and determine the acid’s dissociation constant and purity. The ester was converted to salicylic acid by base hydrolysis. The products were refluxed and recrystallized, to ensure maximum purity, and …
CHEM 1105 Experiment 4: Determination of a Chemical Formula Introduction When atoms of one element combine with those of another, the combining ratio is typically an integer or a simple fraction. The simplest formula of a compound expresses that atom ratio. When two or more …
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…)
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 …
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 …
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? …
The second trial displayed similar results of a weak presence of carbon dioxide. The solution bubbled up, the cork stayed stationary in the top of the bottle, but the solid did not dissolve completely. A third trial was performed in which we decided to increase …
The universe is governed by four fundamental forces, or interactions. These forces are the strong nuclear force, weak nuclear force, electromagnetic force, and gravity. The first two forces work on the atomic level but we can observe gravity and electromagnetism every day. Without these four …
Nuclear energy is a type of energy which is released by a reaction called as nuclear reaction. There are two main types of nuclear reactions, one is called fission and the other one is fusion: In Fission reaction it releases a nuclear energy when a …
Introduction Flavopiridol, a well-established inhibitor of cyclin-dependent kinases (CDK’s), is currently undergoing clinical trials. The inhibition of CDK’s, which are involved in the cell division cycle, is a vital goal in anticancer agents and therefore having potent drugs which can selectively inhibit these is crucial. …
Aim: The aim of the Assessment Task 1 is to investigate the effect of 1)temperature, 2)pH and 3)substrate concentration on the action of enzyme such as catalase on hydrogen peroxide. Background knowledge: Enzymes are organic catalysts composed of proteins that assist organisms in facilitating metabolic …
It is common knowledge that petroleum and petroleum gas (LPG) are good sources of energy. Imagine that petroleum did not exist. This simply means that all the technology that has been developed around petroleum will not be there. To say the least, development in the …
Introduction: ? Neutralization reactions involve the reaction of an acid and a base to produce a salt (ionic compound) and water. Acid + Base ( Salt + Water ? In this lab, sulfamic acid (a weak acid which contains one acidic hydrogen) will be used: …
Students were assigned unknown organisms and the objective of the lab tests was to identify of the unknown organisms. A microorganism can be identified as an organism that can be through the aid of the microscope. In a typical condition, microorganisms are said to contain …
Introduction: Suspensions are solid dipersion of insoluble or sparingly-soluble drugs, in aqueous like keltrol or oily vehicles such as emulsion. Suspension are used for oral administration, external application to the skin (topical) or parenteral administration.These particles suspended into liquid medium do not dissolve but have …
The structural compartmentation of mammalian cells and the differing functions of these compartments. All mammals are eukaryotes and therefore have eukaryotic cells. These cells contain several organelles suited to a specific function they carry out within the cell. These eukaryotic cells contain a Nucleus, Mitochondria, …
Abstract This experiment gave a visual understanding of osmosis and diffusion. The first experiment proved that solutes would move down a concentration gradient if permeable to the selective membrane. The second experiment proved different solute concentrations affect the movement of water, depending on the solute …
Results In this experiment we used paper chromatography to determine the amount of chlorophyll a, chlorophyll b, xanthophyll, and beta-carotene in a tube of blended leaf extract. We recorded our findings on the table labeled. Shows the transmittance at each wavelength on a table from …
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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