Chemistry essays

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Coffee Grounds As A Biosorbent For Copper Ions In Contaminated Water

3 Pages 1375 Words
Introduction Metals are classified as lustrous and malleable electrical conductors that are located mainly on the left side of the periodic table. Many industries around the world, such as metal plating and mining companies, produce wastewater contaminated with heavy metals such as lead and copper which they dispose of into the environment (Seniūnaitė, Vaiškūnaitė, Bolutienė 2014). This is a significant...
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Chromatography in Forensic Investigations

2 Pages 1136 Words
Introduction Forensic investigations: defined by applications of principles to matter (Merriam, 2019). Examined through analytical techniques; procedures for analysis of facts, issues, or status- generally are tasked and time-limited (ManagementMania, 2016). However, with increased effectiveness- accuracy of findings will intensify and limitations will decrease. Chromatography is a technique used within forensics- separating components of a chemical mixture relying on the...

The Efficacy of Keto and Low Carb Diets

2 Pages 835 Words
Introduction The ketogenic (keto) diet and low carbohydrate (low carb) diet have gained significant attention in recent years for their potential health benefits. Both dietary approaches focus on reducing carbohydrate intake, albeit to varying degrees, and have been linked to improvements in weight loss, metabolic health, and chronic disease management. The keto diet is characterized by a very low intake...

The Nutritional Considerations Of Athletes

3 Pages 1570 Words
The nutritional considerations that athletes need to be aware of in order to improve their performance are categorised into 3 sections, pre-performance, during-performance and post-performance. Pre-performance The athlete must be aware that it is important to be well-fueled and hydrated. Tennis players need to pay special attention to their pre-match meals and beverage choices as these foods and fluids may...

Types And Importance Of Carbohydrates

3 Pages 1511 Words
INTRODUCTION Carbohydrates are the most common biomolecules found in living organisms on earth, belonging to the class of organic compounds. Annually, photosynthesis convert over 100 billion cubic meters of CO2 and H2O into cellulose and other plant materials. Living matter is mainly composed of biomolecules formed of water and complex amino acid, lipid, and carbohydrate polymers.Carbohydrates are related to glycoprotein-forming...

Impact of Cattle Grazing on Soil pH in Monduli Highlands

3 Pages 1451 Words
RATIONALE Soil pH is the measure of the concentration of hydrogen ions and hydroxyl ions in the soil. It is measured in the range of 1 – 14, 1 being the most acidic and 14 being the most alkaline while 7 serves as the midpoint representing neutral substances like water. Soil pH is an essential measure in determining the availability...
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How Is Marine Biodiversity Affected As A Result Of Nitrate Concentration?

4 Pages 1660 Words
Rationale The nitrogen cycle (Figure 1.0.1) is complex and involves chemical, geological and biological processes. Flora, fauna and various bacteria are involved. Air is approximately 79% nitrogen but nitrogen gas cannot be used by most living organisms. Instead, plants must obtain their nitrogen from the soil as nitrate and animals obtain their nitrogen from plants or other animals. Nitrogen is...

Decomposition Of Hydrogen Peroxide

4 Pages 1763 Words
The higher the temperature the faster the particles move. This is because of the kinetic energy, the more kinetic energy there is, the greater the chance is for a collision that results in a reaction. More energetic particles have a higher chance of “COLLIDING SUCCESSFULLY because they will collide more often thus increasing the number of successful collisions PER SECOND,...

Impact of Tea Tree Oil Concentration on Inhibition Zone Size

2 Pages 811 Words
Rationale In the practical experiment conducted different concentration levels of Tea Tree oil were used against the bacteria of Micrococcus Luteus to measure the effectiveness of Tea Tree oil at different concentrations. The experiment was originally the practical of “Which of the six natural antibiotics was most effective against the spread of Staphylococcus Epidermis and Micrococcus Luteus?” To the practical...

Petrol Vs. Ethanol

3 Pages 1291 Words
Research Question Reducing carbon output from cars and producing more sustainable fuel at first seems straightforward but there are a number of things that need to be considered. Investigate the advantages or disadvantages of smaller versus larger engines, fuel types and electric vehicles. Report on a type of engine and fuel and its potential advantages and disadvantages in reducing carbon...
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Analyzing Dynamics of Reaction Rates

2 Pages 1070 Words
Introduction Determining the rate of a chemical reaction is pivotal in the field of chemistry as it provides insights into the speed at which reactants are converted into products. This understanding is crucial for a variety of applications, ranging from industrial manufacturing to biological systems. The rate of a reaction is influenced by several factors including concentration, temperature, surface area,...

Impact of Glucose in Drinks on Tooth Decay

3 Pages 1184 Words
Abstract This investigation discusses the relationship between the specific glucose concentration in three solutions Coke, Gatorade and Sucrose. This spectrophotometer was used, this is a device to measure absorbed light intensity as a function of wavelength of 340nm and record visible regions of glucose and sucrose. The experiment found that glucose obtained and concentration of 1.83g/100mL in Coke and 1.2g/100mL...

Toxicity Of Heavy Metals Pollutants In Textile Industrial Effluents

5 Pages 2283 Words
Abstract The textile industries mainly generate huge quantities of untreated wastewater leading to increased water pollution and human diseases in India.The present study deals with the collection of textile industry effluent and its characterization to find out the heavy metal load generated from textile industries, on the natural waste water streams. The major pollution indicating parameters and heavy metals were...

Electrolysis Of Copper IA

3 Pages 1491 Words
INTRODUCTON A redox reaction is a type of chemical reaction “that involves a transfer of electrons between two species” (Spohrer, Breitenbuecher & Brar, 2019). For a reaction to be classified as redox, there must be one species that is reduced and another that is oxidised. This means that both reduction (the gain of electrons) and oxidation (the loss of electrons)...

Electrolysis Of Copper Investigation

3 Pages 1439 Words
Introduction In our modern society, a plethora of chemical processes and reactions are commonly found in our everyday environment and are significant parts of the products we use. One such process is a redox equation, which consists of oxidation and reduction. Originally, oxidation and reduction were viewed in terms of adding or removing oxygen. Now, they are defined in three...

Effect of CuSO4 concentration in Cu and nail electrolysis experiment

3 Pages 1175 Words
Introduction Electrolysis is when an electric current pass through a chemical solution to create a non-spontaneous chemical reaction (Britannica, 1998). Electrolysis can be used to separate compounds into its original elements (libretexts, 2019). In electrolysis, the reduction - or the gain of electrons - and the oxidation - or the loss of electrons occurs. This is referred to as Redox...

The Removal Of Copper By Coffee

3 Pages 1240 Words
ABSTRACT Water is the most essential piece of the puzzle on how the human body functions and is constantly being used to maintain cell, tissue and organ functions (Laskey and Sinha, 2019). Humans loose water through breathing, digesting and sweating so it is important to remain hydrated. However, water is constantly being recycled so any contamination can be hard to...

Impact of Ethanol Concentrations on Beetroot Cell Membrane

4 Pages 1947 Words
Introduction The membranes of cells are made up of a fluid imitating, semi-permeable plasma membrane. This is made up of a phospholipid bilayer. A phospholipid bilayer is comprised of phospholipids (see figure 1) and various membrane proteins. The lipid tails of the phospholipids are hydrophobic (repel water) and the phosphate heads are hydrophilic (attract water). In order to ensure the...

Recommendation And Justification For Carbohydrates

1 Page 511 Words
As discussed in Part 3, my client’s macronutrient consumption values met AMDR recommendations in all areas. However, my client’s consumption of carbohydrates bordered on the lower region of the 45-65% range (NHMRC, 2013). Over the three days my client averaged a total of 169g of carbohydrates per day, equating to 49.6% of total energy consumed. Further evaluation of his diet...

Determining Glucose Concentration in Coke and Gatorade

4 Pages 2004 Words
Abstract The purpose of this experiment was to investigate the glucose concentration in popular drinks coke and Gatorade and to identify how a changing environment can impact the hydrolysis of sucrose. This was examined by a series of mutli- enzymatic reactions of glucose resulting in NADPH, measured by a spectrophotometer at 340nm. The results showed the glucose concentration of coke...

Determining The Concentration Of Glucose In Drinks Using Spectrophotometry

4 Pages 1679 Words
Abstract The purpose of this experiment was to determine the concentration of glucose in an assortment of drinks – Coke, Gatorade, and a sucrose solution. This was achieved through the use of a spectrophotometer to measure the absorbance of NADPH, which is directly linked to the glucose content, produced via a multistep enzymatic reaction. The results indicated a directly proportional...

Investigating The Effect Of Temperature On Chemical Reaction Rate

2 Pages 977 Words
Rationale There are chemical reactions occurring all around us and without them, even humans would not be able to live. Chemical reactions have major factors that affect the rate of the reaction; temperature is one of those major factors. For example, bread dough rises more quickly in a warm place instead of a cool one, and warm-blooded animals regulate their...

The Effect Of pH On Enzyme Action

3 Pages 1224 Words
RATIONALE Enzymes are proteins that act as catalysts within living cells. Catalysts increase the rate at which chemical reactions occur without being consumed or permanently altered themselves by lowering their activation energy (Christensen, 2018). Every enzyme has a region called active site, where enzymes are binds to a substrate to create another enzyme and carries a reaction. Enzyme is important...
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Gas Chromatography for Identifying Alcohol in Investigations

2 Pages 989 Words
Chromatography is the best technique for identifying different chemicals within a mixture. Rationale Forensic chemistry is the application of chemistry, forensic toxicology, in a legal setting. A forensic chemist can assist in the identification of unknown materials found at a crime scene. Forensic Chemists have a wide array of methods used to identify unknown substances including HPCL chromatography, gas chromatography-mass...

Mylanta's pH Relief for Heartburn Levels

2 Pages 910 Words
Rationale This scientific report aims to determine if different amounts of Mylanta liquid, when increased in dosage size, is more effective in relieving heartburn faster. The human stomach is a muscular, stretchable sac with a sphincter (ring of muscle) at each end and contains hydrochloric acid which activates pepsinogen ('Biology: A human emphasis', n.d.). This then breaks down the food...
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Discovering The Limiting Reagent For A Chemical Reaction

3 Pages 1336 Words
Introduction The purpose of this investigation was to find the quantitative data for the reaction between a solution of Sodium iodide and a solution of Lead (II) nitrate. This was done by finding when the limiting reactant changed from one solution to the other. To achieve this, one of the two reactants in the experiment was chosen to maintain the...

Ethanol-Gas Blend Impact on Emissions & Efficiency

3 Pages 1476 Words
Background research Ethanol Ethanol is a chemical compound and a simple alcohol with a chemical formula . It is volatile, flammable, colorless and transparent liquid. It is main type of alcohol in alcoholic drinks. It is produced by the fermentation of sugars by yeasts or petrochemical processes. Ethanol is also used a clean burning fuel (Wikipedia, 2019). It can be...
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Electrical Conductivity And pH

3 Pages 1522 Words
Abstract The aim of this experiment is to discover if there is any connection between ph and electrical conductivity. In order to achieve this, five solutions with varying ph levels were measured. With this, this experiment also shows the conductivity of baking soda, lemon juice, dishwashing detergent, milk and white vinegar. From this experiment, the solutions from most acidic to...
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Seaweed Biochemical Composition and Nutraceutical Potential

4 Pages 2029 Words
EAWEEDS are marketed as “functional foods” or “nutraceuticals” due to their highly biochemical ingredients, and they are vital as food supplement in order to relinquish physiological condition and resist diseases. In the present study, the biochemical compositions of the seaweeds Caulerpa racemose, Digenea simplex, Sargassum polycystum and Cystoseria myrica were studied. The total protein, carbohydrate, lipid, fatty acids, amino acid,...

Heavy Metal Tolerance In Fungus

5 Pages 2071 Words
The heavy metal pollution in the soil is one of the major threats to the environment due to its accumulative nature and non- biodegradability. Both natural such as geologic parent material, volcanic eruptions, wind - blown dusts in deserts and anthropogenic such as agricultural, mining, sewage water, industrial, transportation sources can be the reason of heavy metal pollution in environment...

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