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Crystal Violate activation of energy
2 pages (500 words)
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Activation energy is the energy required to initiate and otherwise spontaneous chemical reaction to continue to react without any need for additional energy. Determination of activation energy, Ea is vital part in chemical kinetic analysis of reactions. Combustion of a paper is… This reaction is as below in a simplified form by abbreviating the crystal violets…
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Problem set 2
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(a) Activation Energy: Since Activation Energy (Ea) refers to the amount of energy that must be overcome for a chemical reaction to proceed, it varies inversely with the ‘rate of the reaction’ so, at higher Ea, the reaction proceeds slowly whereas at lower Ea, the… (c) Frequency of Collisions: Generally, more frequent collisions yield higher effective…
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Los Angeles lab report
4 pages (1000 words)
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Determination of resistance to fragmentation by the LOS Angeles Test. Name Institution Determination of resistance to fragmentation by the LOS Angeles Test. Aim The aim of this experiment was to find out the aggregate toughness and abrasion characteristics.… The test of reference is done on the fraction size 10/14mm. In order to understand the operation of the…
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Kinetic versus Thermodynamic Control in Competing Reactions
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From the research, it is evident that cyclohexanone has a lower activation energy compared to benzaldehyde semicarbazone. This is apparent when the MW for cyclohexanone is recorded as 98.15g/mol and that one of the benzaldehyde as 106.121g/mol.… From this research it is clear that the compound is normally found in structures that are crystalline. Their C-S…
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Compare and contrast thermodynamics and kinetics
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It is concerned with large scale or macroscopic properties of matter and has no hypothesis on microscopic or small scale properties of matter. Thermodynamics derives general… It studies the factors that affect reaction rates and the mechanisms in which the chemical reactions proceed. Kinetics is concerned with the measure of reaction rates of that proceed…
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Chemistry
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The pH scale measures the concentration of H+ ions in a solution The scale is divided into fourteen units with zero indicating the highest acidity while fourteen indicating the… Substances react differently depending on the pH they have. Solutions having very high or very low pH are corrosive and should be handled with care. Chemical reaction is the term used…
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Chemistry Practice - Bonding energy kinetics
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Potassium is a metal while chlorine is a non-metal. The difference in electronegativity values of potassium and chlorine is high (the electronegativity values of potassium and chlorine are respectively 0.8 and 3.0 (Brown, LeMay and Bursten, 1991). Potassium will have a tendency to form the cation, K+.… The bond is covalent in nature. There is a sharing of…
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Catalytic Converters in Cars (Chemistry For Life Sciences)
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A chemical reaction occurs due to collisions between particles in the reacting system. The minimum energy needed in the colliding particles to produce the reaction is known as the activation energy.… The combined energy of the colliding particles is called the collision energy. Only when the collision energy is equal to or greater than the collision energy,…
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Chemical KInetics Chemistry
6 pages (1500 words)
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Raising the temperature of a chemical reaction causes the reaction rate to rise due to the increased amount of high energy collisions between the molecules involved. It is only such collisions that end up in a reaction. One requirement for the collisions to occur is that they… The theory states that when appropriate molecules of a reactant collide against each…
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Chemical KInetics Chemistry
6 pages (1500 words)
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Raising the temperature of a chemical reaction causes the reaction rate to rise due to the increased amount of high energy collisions between the molecules involved. It is only such collisions that end up in a reaction. One requirement for the collisions to occur is that they… The theory states that when appropriate molecules of a reactant collide against each…
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How photosynthesis and respiration are linked And how do they to provide you with energy from the food you eat
3 pages (750 words)
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Humans belong to the group known as heterotrophs that cannot make their own food, hence are dependent on other organisms, like plants and animals, for deriving their food. Plants and animals belong to the group known as autotrophs that are create their own food… During photosynthesis, sunlight causes the water and carbon dioxide to be changed into oxygen and…
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Activation of inflammasome
14 pages (3500 words)
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The Immune system offers protection to the body from internal and external threats. Mammalian IS is classified into innate and adaptive immunity. Adaptive IS appeared later in the evolutionary time line and it is more specific than the innate immunity.… There is a connection between deficiencies in the molecular underpinnings of the adaptive immune system and…
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Enzymes
1 pages (250 words)
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For example, the catalyzed dissociation of a compound is hastened by exposing it to a positively charged catalyst, which attracts the anionic component of… Because they are usually proteins, a temperature lower or higher than the optimal range results to denaturation, which changes the shape of the protein. Chemists have already successfully utilized solids…
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Chemistry Problems
5 pages (1250 words)
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2. At an increased temperature, the molecules gain energy and therefore their speed is increased. This results in the increment in the number of collisions and hence the rate of reaction. Increasing the temperature also increases the kinetic energy of the reactants but the activation energy remains constant. … As the activation energy decreases the rate of…
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Summary on Creep Behavior of Discontinuous SiC-Al composites
4 pages (1000 words)
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Name Instructor Task Date “Summary on Creep behavior of discontinuous SiC-Al composites” This article states that Metal Matrix Composites (MMCs) are important in linking metallic and ceramic properties. This is because MMCs have elevated strengths and good conductivities.… The first experiment tested compressed creep on SiC with 3-5 wt. percentages of Li at a…
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Impact of a water Jet laboratory
6 pages (1500 words)
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Freezing also referred to as solidification is a transition phase at which a liquid changes into a solid whenever its temperature is lowered below its standard freezing point (Neil, 2008). It is worth noting that all liquid with the exception of liquid helium freeze whenever the… The term molar mass of a given substance is often used to refer to the mass of…
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Discuss lock-and-key theory of enzyme-substrate interaction giving specific example to illustrate theory. Include the effects of substrate concentration, pH cha
4 pages (1000 words)
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Include the effects of substrate concentration, pH changes, temperature changes, and competitive inhibition. Enzymes are organic catalysts that speed up a chemical reaction… Enzymes have active sites which interact with the substrate. The structure of the active site is unique for that respective substrate. Just as a uniquely shaped key will only fit in to…
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Enzymatic Activity
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This happens to be the main hypothesis. Proteins that speed up the rate of chemical reactions in a stomach are called enzymes and they are also proteins. On the other hand, hydrogen peroxide is a… The purpose of the above named experiment is determination of whether the breakdown of hydrogen peroxide is endothermic or exothermic reaction. The experiment is…
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Effect of Salinity and Brine ionis Composition on Wettability Alteration
3 pages (750 words)
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There exist no adsorption mechanisms discussed in petroleum literature in exclusion of Buckley et al (1998) rock wettability alteration by crude oils studies that established the cation-bridging evidence. However, Lager (2006) currently made a proposal of a theory that… Disturbance of the equilibrium by injection of low salinity water results into formation of…
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Catecholase, Enzymatic Browning and Temperature
4 pages (1000 words)
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This leads to formation of brown pigments that cause loss of quality and deterioration of crops after harvesting (Chi, et al., 2014). The enzymatic activity causes… The rate of enzyme reaction is affected by temperature, substrate concentration, pH, and presence of inhibitors and cofactors. The equilibrium model describes the effect of temperature on enzymes.…
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Chem 2
2 pages (500 words)
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For diethyl ether this value is 0.001464. Hence, less CO2 is produced in case of diethyl ether per kJ of heat produced. Consequently, from the greenhouse gas standpoint, diethyl ether is a… Ultimately 17,000 people were evacuated. 11. You are transporting a cylinder of phosphine. What is the shipping description? If there is an accident and the contents of…
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Chemistry Assignment
1 pages (250 words)
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This paper presents several assignments that concern chemistry issues. To be precise, there are answers for different tasks. Thus, it is stated, "Be" has 4 protons and 11-4=7 neutrons, because it’s neutral it has 4 electrons and hydrogen like beryllium ion has 1 electron. … Question 1: En=-(13.6eV*z²)/n², because z=4 it can be written as En=-16*13.6eV / n²…
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Kinetic of the catalytic decomposition of hydrogen peroxide
5 pages (1250 words)
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By varying the concentration of hydrogen peroxide, investigate the rate of decomposition so ass to determine the nature of chemical reactions hydrogen peroxide with other substances such as metals and other chemical solutions. By varying the quantity used of manganese (VI)… Calculate the activation enthalpy of the decomposition of hydrogen peroxide solution…
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Catalysis and catalysts
3 pages (750 words)
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A catalyst can be described as a chemical substance that influences chemical reaction rates by changing the required stimulation energy for the reaction to start. This is also known as catalysis and it can be demonstrated through the Maxwell-Boltzman speed Distribution diagram.… With this introduction, this essay will demonstrate how catalysts speed up…
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Enzymes lab report
5 pages (1250 words)
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Using mil as the substrate and drops of enzyme at temperatures 00C, 200C, 370C and 600C, this study examined the rate of lactose hydrolysis by measuring the amount of glucose produced at each… Enzymes can be defined as biological molecules that catalyze metabolic reactions that sustain life. Enzymes are made of a complex protein and catalyze specific chemical…
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