Introducing with Biochemical Cycles Biochemical cycles Nutrients are important for organisms to function. Each nutrient has a role in global biogeochemical cycles. A nutrient is a chemical that organisms need to live and grow and are substances an organism’s uses for metabolism which must be …
Syl Rogers Bio 210 Comparing Fermentation Rate of the S. cerevisiae Yeast in the presence of MgSO4, NaF and Sodium Pyruvate Hypothesis In the fermentation of rate of yeast, S. Cerevisiae, there will be a higher/ faster rate of ethanol production, However, using catalytic enzymes …
Heat exchanger An interchangeable plate heat exchanger Tubular heat exchanger. A heat exchanger is a piece of equipment built for efficient heat transfer from one medium to another. The media may be separated by a solid wall, so that they never mix, or they may …
Introduction The purpose of this experiment is to demonstrate an example of how to determine the unknown molarity of hydrochloric acid by titration with a base (sodium hydroxide). Titration is a common laboratory method of quantitative chemical analysis that is used to determine the unknown …
Benzene is a chemical compound of the hydro-carbon group. It is a colorless liquid with a characteristic odor and burning taste, formula C6H6. The benzene molecule is a closed ring of six carbon atoms connected by bonds that resonate between single and double bonds; each …
When I was researching for this essay explaining what soil and water conservation means to me, I found two quotes that really stuck out to me. One written by Franklin D. Roosevelt stated, “A nation that destroys its soils destroys itself. Forests are the lungs …
Fermentation is anaerobic respiration whereby food is altered into more simple compounds and energy in the form of chemicals is produced, an example being adenosine triphosphate (biology-online. org/dictionary/Fermentation). All this occurs with the lack of atmospheric oxygen. At the end of the day alcohol and …
Natural products isolated from various sources especially derived from plants, have long been used in treatment of human ailments. For long time, the approach to new drugs through natural products was proved to be the single most successful approach for the discovery of new drugs. …
It is amazing how important things are being discovered by persons who spend most of their lives dedicated to research. It is perhaps more amazing how a scientist discovers one thing while trying to discover other things. Imagine if no one was patient enough to …
From many experiments, Thomson had certified that cathode rays carry negative charge and identified the cathode rays inside vacuum tubes as being electric currents composed of these tiny electrons (Hamblin, 2005). It was the crucial first step in the development of the twentieth-century concept of …
A cycle is a biological pathway or process in which the end product of one cycle becomes the starting point for the next cycles Write an essay about cycles. Respiration Cells in the body use ATP as a direct source of energy. The conversion of …
A waste is considered toxic or hazardous if it threatens the health of the people and the destruction of the environment. The waste may be in any form and may be considered toxic even upon its storage. A more distinct characteristic of a toxic waste …
The refractive index Aim: The aim of this experiment is to find the refractive index of a glass prism. In this experiment, the independent variable is the angle of incidence, and the dependent variable is the angle of refraction. Theory: Snell’s law relates the angle …
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 …
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 …
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 …
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 …
Theory: Photosynthesis is a process carried out in plants, in the photosynthetic organ which is the leaf. CO2 + H2O –> (CH2O)n + O2 A plant takes in CO2 and H2O and absorbs sunlight in order for photosynthesis to take place. These reactants then travel …
Introduction: Cyclohexanol is mainly used in the production of caprolactam and adipic acid that is a raw material of nylon 6 (Zhang, et al, 2002). Cyclohexanol can be produce through several methods, which include the oxidation of cyclohexane, the hydration of cyclohexene, or the hydrogenation …
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 …
The Roles of the Nephron of the 120 ml of blood that is filtered by the kidneys each minute, only I ml (that’s less than I%) turns into urine that will eventually leave the body (after approximately 300 – 400 mis of it accumulates to …
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 …
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% …
BroIn this experiment of the relative rates of free-radical chain bromination, we were expected to be able to determine the relative reactivates of the many types of hydrogen atoms involved toward bromine atoms. Bromination is defined to be a regioselective reaction meaning bromine has preference …
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 …
Bioremediation Bioremediation is such type of technology in which microorganism, fungi, bacteria, plant and there is use to convert polluted condition in to original condition. Through bioremediation process microorganism act on pollutant or on chemicals due to which pollution occur and help that thing to …
Introduction An isotope is a variation of an atom that already exists. An isotope is different from an atom because of the number of neutrons in its nucleus. Finding the amount of neutrons in an atom can be calculated by subtracting the atomic number of …
What is an ionic bond? Typically an ionic bond occurs between one metal and one non-metal ion. One atom borrows one or more electrons from another atom. An ionic bond is a type of chemical bond that occurs when one atom loses an electron to …
Copper in pure form has found its significant use only in electrical applications. But with the continued study of copper, the addition of other metals called alloys was developed which enhanced its various properties. Now, different Copper-based alloys were widely used in different aspects of …
We wanted to extract, see and analyze DNA from a single strawberry( 12. 11 g). The long, thick fibers of DNA store the information for the functioning of the chemistry of life. DNA is present in every cell of plants and animals. The DNA found …
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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