Science Essays

Terpenes are a large and varied class of hydrocarbons produced by a wide variety of plants. Many essential oils belong to the terpene class. They are made up of two or more five-carbon units that are called isoprenes. Limonene is a terpene that can be separated from orange peels almost 100% in the (R)-(+)-limonene form. […]

Alcohols react with hydrogen halides (HCl is used in this experiment) to yield the resultant alkyl halides and water. The insolubility of the alkyl halide in water allows the separation of it from the aqueous layer using a separatory funnel. The alkyl halide, then, were purified by a simple distillation apparatus using boiling point differences […]

The History of Absolut Vodka Absolut Norfolk Vodka has been a very popular spirit since 1979. It is the fourth largest international premium spirit in the world. It’s was made in a small village called Ahus in Southern Sweden. From 1979 to 2010 they have branch out over fifteen different brands and flavor all over […]

Preparation of 1-bromobutane, an SN2 reaction Preparation of 2-chloro-2-methylbutane, an SN1 reaction Introduction The purpose of this experiment is to synthesize 1-bromobutane from 1-butanol and sodium bromide. In order for this reaction to reach completion there are four major operations that need to be performed. The four major operations include refluxing, simple distillation, separation, and […]

Distillation of Alcoholic Beverages Abstract We used a Quickfit Set Up in order to perform a Simple Distillation procedure. We used 15mL of The Bar as our distillate. We separated and calculated the alcohol content of the said beverage by the distillation process. Introduction Alcoholic beverages are undeniably part of our culture for a long […]

Written report discussing the purity of my aspirin sample I produced. When I carried out the experiment to produce an aspirin sample I had to take a few results I had gained from carrying out the experiment later used these to work out the experimental error and percentage % yield. The results I used where […]

Introduction Bacardi Limited is an esteemed global alcohol manufacturer that has successfully expanded its product line from rum drinks targeting young partygoers to high-quality beverages for sophisticated drinkers. This diversification was achieved through strategic mergers with other spirits companies. The purpose of this report is to evaluate Bacardi Limited’s competitive position and suggest recommendations for […]

Introduction This is because it is claimed that the distillery has been in operation since the twelvemonth 1779. That gives it a history crossing at least two hundred old ages. But this history is non really clear, since it is non clearly stated from any signifier of certification when the first merchandise was distilled in […]

Hypothesis The optimum temperatures of Alcalase and Savinase will be different. Above and below their optimum temperatures activity will decrease. Biological explanation This investigation is designed to look at the effect of temperature on the activity of the proteases Alcalase and Savinase. By the end of it I hope to know the optimum temperature of […]

Abstract This experiment aimed to monitor the efficacy of the Barley Amylase Enzyme in breaking down starch in solutions with increasing neutral pH levels. The experiment involved simultaneously mixing tubes containing a reaction solution of Amylase enzyme and starch. The reactions were then stopped using I2-KI at two-minute intervals. To ensure accuracy, each trial was […]

Introduction: The purpose of this experiment is to measure the effects of changes in temperatures and pH on enzyme activity in skeletal muscle, particularly the activity of lactate dehydrogenase (LDH). LDH is a glycolytic enzyme which converts pyruvate to lactate in the following equation: LDH Pyruvate+ NADH ? ————? Lactate + NADThe reaction above can […]

Determining the Optimal Temperature and PH of Barley Amylase Abstract The purpose of this experiment was to find the optimal temperature and pH of barley alpha-amylase. I hypothesize that the optimal temperature would be 55 degrees Celsius and the optimal pH would be 5. 5. In this experiment, the starch is used as a substrate […]

Enzyme Activity Lab Hypothesis: Are enzymes reusable? Yes, enzymes are reusable. Which of the following do you think contain catalase? [Manganese dioxide, chicken meat, apple, carrot, potato, or chicken liver] I think that the manganese dioxide, apple, and carrot contain the catalase. Would grinding the materials affect enzyme activity? I think that grinding the materials […]

Aim and Hypothesis: My aim in this experiment is to compare the enthalpy change of neutralisation by titration, for each reaction between the following 3 acids:Sodium hydroxide (NaOH) and hydrochloric acid (HCl) – pH 1Sulphuric acid (H2SO4) and NaOH – pH 1NaOH and Ethanoic acid (CH3COOH) – pH 2.88 – 3I predict the reaction between […]

The lecturer handpicked the optimal data sets for comparing pH measurements of different soil types with and without 0.01M calcium chloride. Table 1 displays that sand exhibits the highest pH, followed by organic matter, compost, 3:2 soil, and sedentary soil with the lowest pH. Soil pH is impacted by acid and base-forming ions including hydrogen […]

Investigating Membrane Permeability Reason for choosing beetroot as the object of experiments Beetroot is usually used as the membrane ‘disruption’ experiment. It is because of beetroot has more pigments in their vacuole. These pigments show how variables damage the membrane of beetroot. The pigments will be automatically extracted from the vacuole when the membrane is […]

Alkaline water, also commonly known as ionized water, is water that has a pH level greater than seven. This water is generally produced with the aid of a faucet-based water ionizer, or “alkalizer” and features a number of health benefits. Making Alkaline Water These are some of the possible sources of alkaline water: * Lemon […]

Indigestion is a general term used to describe discomfort or pain in the upper abdomen or chest, which is sometimes experienced while our bodies digest the food we eat. A better and more scientific term for indigestion is dyspepsia. Indigestion is caused by too much acid in the stomach. Indigestion tablets contain bases, which neutralize […]

One of the more common reactions seen in chemistry is the acid/base reaction. The most common result of an acid/base reaction is the formation of water and a salt. Such a reaction can be highly useful in the analysis of an unknown acid or base. By titrating the unknown analyte with a standard reagent, several […]

Metal Zinc Blobbing Magnesium Fizzing Bubbling Iron Copper Reactions with Indicators Speed of Reactions With Metals Observations continued: In my observations, in data table 1, the only solution that reacted with the red litmus paper was Noah. All three solutions reacted with the blue litmus paper; HCI and HACHURE turned the blue litmus paper red, […]

Honors Chemistry Titration Lab Write-up Introduction Titration Is a method, which Is meant to find the concentration of either an acid or a base by adding a measured amount of It to a known volume and concentration of an acid or Basel . Titration starts with a beaker or Erlenmeyer flask containing a very precise […]

An investigation into the total acid content of assorted brands of lemon and lime soft drink Abstract: The aim of this experiment was to determine the total levels of carbonic acid concentration in 3 differing brands of lemon and Lime soft drinks. Research Question: Does the acid content in three different lemon and lime flavored […]