Essays on Chemical Reaction

The following academic paper highlights the up-to-date issues and questions of Factors Affecting Osmosis. This sample provides just some ideas on how this topic can be analyzed and discussed. We will connect the calibrated gas syringe to the side armed flask. We will place the strip of magnesium ribbon into the side armed flask at the same time as putting in the bung and starting the stop clock. We will time how long the reaction takes until it is stopped…...

The sample paper on familiarizes the reader with the topic-related facts, theories and approaches. Scroll down to read the entire paper. This coursework is aimed to find out the rate of reaction between hydrochloric acid and magnesium in different temperature. The product of this chemical reaction is magnesium chloride and hydrogen.Safety:We should wear lap coat and wear goggles when doing this experiment, because acid is corrosive and irritant, especially when you boil it, it is very easy to spit into…...

This essay sample on Halohydrogenation provides all necessary basic info on this matter, including the most common "for and against" arguments. Below are the introduction, body and conclusion parts of this essay. Therefore, alkyl halides are compounds that have a halogen atom bonded o a saturated, SSP hybridism carbon atom. These could be classified according to the number of alkyl groups attached to the carbon that is bonded to the halogen atom. A methyl halide does not contain any alkyl…...

This sample essay on Kidney Stones Lab Report provides important aspects of the issue and arguments for and against as well as the needed facts. Read on this essay's introduction, body paragraphs, and conclusion.Kidney stones are also referred to as renal calculi and are formed in the kidney as a result of buildup of minerals that are being excreted from the body as waste. This buildup can be caused by superannuation which is when there is too high of a…...

This sample paper on Zinc Reacts With Copper Sulphate offers a framework of relevant facts based on the recent research in the field. Read the introductory part, body and conclusion of the paper below.To investigate the affect of varying the amounts of zinc in the reaction between zinc and copper sulphate has on the rate of reaction. Background Knowledge My experiment is based on the theory of: ‘A more reactive metal can displace a less reactive metal from a compound’…...

The sample paper on Peroxidase Lab Report familiarizes the reader with the topic-related facts, theories and approaches. Scroll down to read the entire paper.We were able to measure enzymatic activity by the change in absorbency per second with a spectrophotometer. By testing different concentrations of peroxides and its reaction rate in seconds, we were able to see that as the amount of enzyme increased the catalytic reaction also increased. The optimal amount of peroxides concentration to be used in the…...

This sample essay on Reaction Of Alkali Metals With Water Lab Report reveals arguments and important aspects of this topic. Read this essay's introduction, body paragraphs and the conclusion below.Then, the test tube was lifted out of the water and kept in an inverted position. Finally, the gas collected was tested by bringing a burning splint to the mouth of the test tube. It was concluded that the Alkali metals were more reactive than the Alkaline Earth metals. When the…...

This essay sample on Chemistry Short Answer Questions provides all necessary basic info on this matter, including the most common "for and against" arguments. Below are the introduction, body and conclusion parts of this essay.Part I Multiple choice or short answer questions 1) (2 points) Identify a solid a. Definite volume and no definite shape b. no definite volume and no definite shape c. definite volume and definite shape 2) (2 points) A substance composed of two or a. A…...

Esterification is used to derivatize carboxylic acids and other acidic functional groups. In a typical reaction, Esterification involves the condensation of the carboxyl group of an acid and the hydroxyl group of an alcohol, with the elimination of water (Konwar, 2008). Many Esterification reactions are slow and elevated temperatures are frequently used. Since the Esterification reaction is an equilibrium reaction, it may be necessary to remove the water generated during the reaction. The chemical industry uses esters for a variety…...

This essay sample essay on Enzyme Kinetics Lab Report offers an extensive list of facts and arguments related to it. The essay's introduction, body paragraphs and the conclusion are provided below.Analyzing absorbency of the solutions with spectrophotometers will determine the reaction rate. To test the optimal pH, the starch and a buffer were combined at a specific pH level and tested the absorbency of a solution at various times. To resolve the reaction rate of a solution at various temperatures,…...

This sample essay on Why Is It Possible To Analyze The Silver Content reveals arguments and important aspects of this topic. Read this essay's introduction, body paragraphs and the conclusion below.Analysis of Silver in an Alloy Introduction In this experiment an alloy of silver will be analyzed to determine its silver content. The silver-copper alloy will be dissolved in nitric acid, the silver will be precipitated as silver chloride, and the silver chloride will be filtered, washed, dried and its…...

The sample essay on The Copper Cycle Lab Report deals with a framework of research-based facts, approaches and arguments concerning this theme. To see the essay's introduction, body paragraphs and conclusion, read on.In conclusion my percent recovery of copper was 100% due to the adequate amounts of solutions and achievement of proper chemical reactions. Equipment and Materials: Copper Metal (penny) Nitric Acid (HON..)(aqua) Sodium Hydroxide (Noah)(aqua) sulfuric ACid Ammonium Hydroxide (NH)(aqua) Hydrochloric Acid (HCI)(aqua) Zinc powder 2 100 ml Beakers…...

The sample essay on Enzyme Experiments deals with a framework of research-based facts, approaches and arguments concerning this theme. To see the essay's introduction, body paragraphs and conclusion, read on. Enzymes are catalysts in the body that speed up the breakdown of food, and are essential in the digestive system. Although food can be broken down by molecules colliding with it, the process is speeded up greatly by enzymes, a type of catalyst. We know from previous knowledge that enzymes…...

The following sample essay on The on Toothpickase Lab deals with a framework of research-based facts, approaches and arguments concerning this theme. To see the essay's introduction, body paragraphs and conclusion, read on. As time went on and towards the end of the two minutes the rate started to stay the same. The trend between the Control and the Trail 2- Enzyme Mutation (Tied Fingers) graph is that Trail 2 produced fewer reactions, averaging at 1 toothpick per 10 second,…...

The essay sample on Concentration And Rate Of Reaction dwells on its problems, providing shortened but comprehensive overview of basic facts and arguments related to it. To read the essay, scroll down.I am investigating the effect of the concentration of Hydrochloric Acid on the speed of the reaction between Sodium Thiosulphate and Hydrochloric Acid. When these react together, sulphur is formed. A balanced chemical equation for the reaction is… Na2S2O3 + 2HCl –> S + 2NaCl + SO2 + H20…...

This sample essay on Synthesis Of 7 7-dichlorobicyclo 4.1.0 Heptane reveals arguments and important aspects of this topic. Read this essay's introduction, body paragraphs and the conclusion below.Abstract The preparation of 7. 7-dichlorobicyclo [4. 1. 0]heptane which is also known as 7,7-dichloronorcarane was done by reacting cyclohexene , chloroform and a base( 50% aqueous sodium hydroxide) with benzyl triethylammonium chloride. The latter being a water soluble phase transfer catalyst (PTC). reaction was performed at room temperature and was distilled at…...

The sample essay on How Long Does It Take For Amylase To Break Down Starch deals with a framework of research-based facts, approaches and arguments concerning this theme. To see the essay's introduction, body paragraphs and conclusion, read on.I am investigating the time needed for enzymes at different temperatures to digest starch. Enzymes are small protein molecules made in the pancreas and stored in the stomach. They are a biological catalyst that means they increase the rate of reaction in…...

This essay sample on Oxidation Of Alcohols By Potassium Permanganate Lab Report provides all necessary basic information on this matter, including the most common "for and against" arguments. Below are the introduction, body and conclusion parts of this essay.The uses of alcohol in daily live are many things. One of example is producing of red wine or beer. The ethanol in alcoholic beverages is produced by fermentation of glucose. The glucose can be found in many fruits such as corn,…...

This essay sample on Na2c2h3o2 provides all necessary basic information on this matter, including the most common "for and against" arguments. Below are the introduction, body and conclusion parts of this essay.The purpose of this experiment is to become familiar with precipitation reactions. According to the textbook, precipitation is the process where a chemical reaction leads to the formation of a solid, which is called a “precipitate.” These types of chemical reactions are called precipitation reactions. To understand the formation…...

The sample essay on 1 Bromobutane deals with a framework of research-based facts, approaches, and arguments concerning this theme. To see the essay's introduction, body paragraphs and conclusion, read on.The aim of the experiment is to produce 1 – Bromobutane, an alkane within the bromine group on the terminal group.Chemical SafetyChemicalHazardsSafety measuresSodium BromideNo hazardsNoneButan – 1 – olHarmful vapour, in liquid state chemical is harmful to skin, can be absorbed and cause internal damage. Flammable.Wear goggles and gloves.If spilled ventilate…...

The sample paper on Caco3 Hcl familiarizes the reader with the topic-related facts, theories, and approaches. Scroll down to read the entire paper.Introduction: The experiment taking place is between calcium carbonate [CaCO3] and hydrochloric acid [HCl]. Calcium carbonate, also known as marble, is a metamorphic rock. This is a rock that is formed over long periods of time under high temperature and pressure. It is also formed when carbon dioxide reacts with calcium hydroxide to produce calcium carbonate. Calcium hydroxide…...

This sample of an academic paper on Fungal Amylase Optimum Temperature reveals arguments and important aspects of this topic. Read this essay's introduction, body paragraphs and the conclusion below.Fungal and bacterial amylase are the enzymes that we going to study for their ability to break down starch. In order to determine how temperature affects the activity of amylase enzyme and the optimal temperature for fungal and bacterial amylase, the activity of these enzymes were tested at different temperature and times…...

The following sample essay on Synthesis Of Triphenylmethanol discusses it in detail, offering basic facts and pros and cons associated with it. To read the essay's introduction, body and conclusion, scroll down.A Grinded reagent is a type of ergonomically, which consists of a bond twine a metal and a carbon. There are three types of carbon-metal bonds: ionic, polar covalent, and covalent. The ionic bonded compounds (example: RNa) have a weak bond between the carbon and the metal, and are…...

The sample paper on Epsom Paper familiarizes the reader with the topic-related facts, theories, and approaches. Scroll down to read the entire paper.We can see clearly from these graphs that as the concentration increases so does the rate of reaction. From the relatively straight lines of best fit we can tell that the rate of reaction is continuous with each different concentration. Scientific Model: From these results we can tell that as the concentration of H2SO4; when increased in the…...

This sample of an academic paper on Hypothetical Essay reveals arguments and important aspects of this topic. Read this essay's introduction, body paragraphs and the conclusion below.Optimum temperature for the enzymatic activity of salivary amylase ranges from ICC to 37 co and its optimum H ranges from 6 to 7. Graph of the time reciprocal against temperature and pH both produced bell-shaped curves. Introduction The chemical reactions occurring in living things are controlled by enzymes. An enzyme is a protein…...

The sample essay on Hess Cycle deals with a framework of research-based facts, approaches, and arguments concerning this theme. To see the essay's introduction, body paragraphs and conclusion, read on.The main idea behind this experiment is to find out the temperature difference between the room temperature and the final temperature. Sodium carbonate, sodium hydrogencarbonate and hydrochloric acid were used in this experiment. Sodium carbonate, also known as soda ash is got from the reaction of carbonic acid and sodium hydroxide…...

Witting discovered the route to alikeness through yield molecules (1). Witting was educated originally at Tubing; Witting spent periods at Brainwashing, Prefigure, back to Tubing again before taking up the post as director of the organic chemistry department at Heidelberg (1 Witting became an emeritus professor in 1967, where he remained until the end of his notable career (1). In 1967, he won the Otto Hahn Prize, and in 1979, he and Herbert C. Brown were jointly awarded the Nobel…...

The theory behind this experiment is the heat of a reaction (AY) plus the work (W) done by a reaction is equal to the enthalpy (AY-A) of said reaction. The purpose of this lab is to calculate the enthalpy of a reaction between zinc and hydrochloric acid through the equation AY+W, which can also be written as AH=mica + PA. M is the mass of what is being measured in grams. C is the heat capacity which is “the amount…...

The molecular formula represents the number of all elements in a compound. The empirical is the simplest whole number ratio of the elements in that compound. Combustion reactions always involve oxygen and are almost always exothermic. Exothermic reactions give off energy in heat form. The purpose of this experiment is to find the empirical formula of a compound using whole numbers. To investigate this experiment, the masses of the metal and gas were measured to obtain the empirical formula of…...

The chemical reactions within yeast are facilitated by enzymes; most enzymes optimal temperature range is warm. The warmer the water, the more the enzymes are in their optimal temperature angle and the more efficiently they catalyst chemical reaction; this makes the fermentation proceed more quickly. In this experiment, the effect of variation of temperature on the fermentation of yeast was tested. If temperature affects the fermentation of the yeast, then the rate of yeast fermentation will change with the different…...

In this lab, the purpose is to measure whether the changes of substrate concentration will affect the rate of anaerobic respiration. Because the rate of reaction refers to how quickly the reactants are used up or how quickly the products are formed, one method is to measure the volume of gas given off, the more gas given off per time interval results faster reactions. Question: Will the changes in substrate concentration affect the rate of anaerobic reaction? Why or why…...

In general, solubility rules can be used to predict the outcome of double replacement reactions. I have come to this decision, because almost all of the data recorded from the lab, with the exception of number 13, agreed with the predictions made beforehand. 2. Out of the 15 combinations, the observations made for the combination of number 13 (the reaction of lead (II) nitrate and barium chloride), did not agree with what was predicted, based on the solubility rules.The solubility…...

I concentrated HCI (drops) Discussion Bunsen burner Most chemical synthesis involves separation and purification of the desired product from unwanted side products. Some methods of separation, such as filtration, sedimentation, declaration, extraction, and sublimation were discussed earlier. This experiment is designed as a quantitative evaluation of your individual laboratory skills in carrying out some of these operations. At the same time you will become more acquainted faith two fundamental types of chemical reactions redo reactions and metathesis (double-displacement) sections. By…...

Hess’ Law of Heat Summation Hess’ Law states that: “The enthalpy change for any reaction depends  on the products and reactants and is independent  of the pathway or the number of steps between  the reactant and product”. BASICALLY:    Hess’ Law states “the heat evolved or absorbed in     a chemical process is the same whether the process     takes place in one or in several steps”     ­­;This is also known as the “law of constant heat summation”. All it means is that no matter how many steps the chemical     reaction proceeds through, the total heat evolved or absorbed    is the added heat values of each step and will always be    a constant figure for that process. For example:     When phosphoric acid (a tri­hydrogen acid) is neutralized     with a base, the hydrogens are neutralised in 3 steps:    STEP 1:   H3P04 + NaOH ­; NaH2PO4 + H2O ­gives X amount of heat     STEP 2:   NaH2PO4 + NaOH ­; Na2HPO4 + H2O ­gives Y amount of heat    STEP 3:   Na2PO4 + NaOH ­; Na3PO4 +H2O ­gives Z amount of heat    Therefore, the total heat of reaction (   Hrxn) is equal to: Law Of Constant Heat Summation There are two (2) ways to calculate the heat of reaction  using Hess’ Law: 1­  Equation Method (Algebraic Method) 2­  Heat of Formation Method (Summation Method) Equation (Algebraic) Method Strategy:    ­add equations for reactions with known enthalpies     so that their net result is the desired reaction Sample Problem 1: Use the equations below to determine the enthalpy of reaction for the decomposition of hydrogen peroxide: H2O2(l)         H2O(l)    +    1/2 O2(g) The equations are: 1­    H2(g)   +   O2(g)       H2O2(l)    2­    H2(g)   +   1/2 O2(g)      H2O(l) Hf = ­188 kJ Hf = ­286 kJ Solution: Sample Problem 2: Use the following equations: 1­    1/2 N2(g)   +   3/2 H2(g)       NH3(g) 2­    1/2 N2(g)   +   O2(g)     NO2(g) 3­    H2(g)   +   1/2 O2(g)     H2O(g) Hf = ­46. 0 kJ Hf = +34. 0 kJ Hf = ­242. 0 kJ to calculate the enthalpy of reaction for: 4 NH3(g)   +   7 O2(g)        4 NO2(g)   +   6 H2O(g) Solution: Practice Problem: Calculate the heat of reaction for the oxidation of one mole of ethanol to ethanoic acid: C2H5OH(l)   +   O2(g)         CH3COOH(l)   +   H2O(l) Use the equations below: ­    C2H5OH(l)   +   3 O2(g)          2 CO2(g)   +   3 H2O(l) 2­    CH3COOH(l)   +   2 O2(g)         2 CO2(g)   +   2 H2O(l) Hc = ­1367 kJ Hc = ­874 kJ Enthalpy of Formation  (Summation) Method Standard Molar Enthalpy of Formation: (             ) ­the amount of ____ (absorbed or released) when _________ of   a compound is formed from its _________________ in their  standard states ­most enthalpies of formation are ­ve (__________________)? therefore, most compounds are ___________ stable than the  elements they are made from…...

For this experiment our primary goal was to observe and note the reaction of butanols with hydrobromic acid. Before the lab began we discussed and proposed mechanisms. (see “Mechanisms”) To begin this experiment we calculated how much of each material we were going to be using, and the numbers we chose to use differed from our reference text slightly. We used 6. mL of our assigned butanol and only 4 mL of sulfuric acid. Going back to our reaction mechanisms,…...

Chemistry 200 Exam 1 Review Problems 1. Calculate the number of atoms in 10. 0 grams of Fe. 2. Give the mass number, #protons, #neutrons and #electrons for the isotope strontium-88. 3. Calculate the number of moles of carbon in 50. 0 g of benzene C6H6 4. A substance is found to be 38. 7 % C, 9. 7 % H and 51. 6 % O by mass. Its molar mass is 62. 1 g/mole. What is its molecular formula?…...

Be sure to address any questions posed in the lab procedure as well as any additional questions that your TA wants you to answer. You should also analyze any NORM spectra that you have from the reaction (if applicable). Spectra of starting materials are available on the Vista site. This reaction was carried out using standard reflux conditions. Both the anthracite and malefic anhydride dissolved immediately in Selene to give a slightly yellow solution. As the reflux was conducted, the…...

After the experiment, the experimental mole ratio of alum to eater will be calculated and then compared with the accepted mole ratio. (This is 12 to 1). Theory If this lab if conducted properly, the unknown substance will be determined to be alum because of melting point, percent hydration and percent sulfate. The first test that will be run has the purpose of revealing the alum’s melting point. Melting is defined as, the temperature at which a solid turns into…...

Aim: The aim of this experiment is to prepare propanone by oxidizing propan-2-ol with acidified potassium dichromate solution. Introduction: Ketones and aldehydes are important series in preparation of other compounds and they are commonly prepared by oxidizing alcohol which is done in this experiment. The experiment is an oxidation reaction where a secondary alcohol (propan-2-ol) is oxidized by acidified potassium dichromate. The reaction does not need to be heated but should be placed in an iced water bath as the…...

Abstraction 4-methylcyclohexanol was synthesized to 4-methylcyclohexene utilizing desiccation. 4-methylcyclohexanol was heated to reflux and the subsequent distillation ( 4-methylcyclohexe ) was collected. It was so purified utilizing Na chloride to divide merchandises and an anhydrous solid was so added and filtered. The resulting merchandise had a mass of 0.399 g and a percent output of 41 % . The merchandise was positively identified and characterized as 4-methylcyclohexene via IR and Br2 trial. Introduction Cyclohexene From Cyclohexanol Lab Report Conclusion To…...