Essays on Acidity

Abstract

The ecological settings in an ecosystem change from time to time. The changes in the ecological settings are brought about by a plethora of factors. Through evolution, the organisms that live in the ecosystem also change to adapt to the aforementioned ecological changes. The adaptation of the organisms to the ecological changes yields variations because different organisms and even organisms of the same species are exposed to the elements to different levels. Man has a significant role to play in the ecological changes. Through his economic activities, the effect on ecosystems has been both positive and negative. Urbanization as ...

An acid is a solution that loses hydrogen ions. Common household acids include vinegar and citrus fruit juice. In contrast, a base is a solution that gains hydrogen ions. Acidic substances often taste sour whereas bases taste bitter and feel slippery. Since the tasting or touching of acids and bases can be harmful to human health, Occupational Safety and Health Administration (OSHA, 2013) recommends the use of indicators to test for the acidity or alkalinity of substances. Typically, indicators such as litmus paper change color when exposed to acids or bases (Stanley et al., 2015). As such, the present ...

Introduction

The flavour and taste of tomatoes are determined by several factors including nutrition, mineral availability, and sunlight exposure. These general factors play a significant role since they affect other small factors, such as the chloroplast, which further affects the taste of tomatoes. The quality of tomatoes grown in the same region can have different flavours. This aspect can be due to the difference in a variety or the nutrition present in the soil. However, the taste of the tomatoes can be attributed to the degree of ripeness as well (Bruno & Wetzel, 2004). There are several practices, such as picking ...

Bacteria refer to the regnum of prokaryotes (Sundararaj, Mudaliar, Anthoniraj, Kannan, Muthukaruppan). For the current moment, it accounts for more than ten thousand kinds of bacteria. The bacterium is recognized as one of the most ancient of living organisms, arising about 3.9 – 3.5 billion years ago. Bacteria have the substantial variation in the ways of metamorphic and energetic metabolism. Thus, autotrophs can synthesize all necessary organic molecules from non-organic compounds, whereas heterotrophs demand active organic compounds to transform them. The biggest degree of heterotrophs belongs to intracellular parasites. They are called saprophytes (Sundararaj, Mudaliar, Anthoniraj, Kannan, Muthukaruppan) and can ...

Introduction

The human body consists various cells that are actively involved in the maintenance of metabolism. Although, the body organs, cells as well as tissues usually carry out different functions, the body cells are similar in regard to their pertinent metabolic needs (Sherwood, 2015). Thus, maintaining the internal environment at a constant state mainly by proving the oxygen as well as nutrients and elimination of waste in the body is an essential process for the wellbeing of the cells as well as the whole body. As such, the various processes through which the human controls or regulates the internal environment ...

Abstract.

Introduction The population of the world is growing at an alarming rate, and this has several consequences on the environment. The growth rate of the population worldwide is currently at 1.1% for each year having grown tremendously from the 1 billion in 1800 to 7.4 billion in the year 2016. The sustainability of the population on the environment is a concern as the tremendous growth rates have led to massive consequences to the environment. Population growth can be attributed to several issues that currently face the world ranging from poverty, unemployment, deforestation and environmental degradation. Problems that are specified ...

Introduction 3

Comparative Financial Performance Analysis of Pepsi and Coca Cola for the Last Two Years (2014 and 2015) through Ratios and their Interpretations 3 Analysis of Profitability Ratios 4 Gross Profit MarginW 4 Net Profit margin 5 Return on Assets 6 Analysis of Solvency Ratios 7 Current Ratio 8 Quick Ratio 9 Analysis of Capital Structure Ratios 10 Debt-to-Equity Ratio 11 Interest Coverage Ratio 12 Examination of Efficiency Ratios 14 Days Sales are Outstanding 14 Days in Inventory 15 Payables Period 16 Findings and Recommendations 17

References 20

Comparative Financial Performance Analysis of Pepsi and Coca Cola Introduction Because of their global ...

Acids

There are three scientifically correct definitions that define an acid substance. Arrhenius defines an acid as a substance that made up of hydrogen that when dissolved in water breaks apart increasing the concentration of hydrogen ions (H+) in the water. Bronsted-Lowry defines an acid as a proton (H+ ion) donor. Lewis describes acids as substances that accept electron pairs. Acids have a sour taste and are highly reactive with metals (Brent, 2009). Nitric acid is used as fertilizers, and hydrochloric acid is used to bricks.

Bases

A basic substance can also be described using definitions from the three authors. Arrhenius ...

There are various ions that are responsible for the acidic or basic nature of a substance. The hydrogen ions and hydroxide ions are both responsible for the acidic and basic nature of substance respectively. A neutral substance contains equal number of hydrogen ions (H+) as well as hydroxide ions (OH-) An acid is substance that dissolve and donate hydrogen ions leading to more number of hydrogen ions in a solution. A substance that dissolves water and release hydroxide ions is considered a base. A base has more number of hydroxide ions as compared to hydrogen ions hence basic. Alkalinity ( ...

The building industry is dynamic with each day new innovations coming up that make work easier and result in efficiency, cost effectiveness, and improve on durability. However, the most important aspect in roofing is to possess the skills and expertise to implement the various changes that are necessary for building. Steep slope roofing refers to a situation where a roof has a slope that has a slope of approximately 3.12 or greater. These roofs are mostly found in residential areas as they are commonly used to construct homes. This is as opposed to most commercial buildings that have maintained ...

Introduction:

Corrosion refers to the partial and gradual dissolution of materials used in water treatment and supply systems, pumps, pipes, tanks and valves. In most circumstances, almost all water is corrosive and this may lead to structural failure, water leaks, capacity losses and deterioration of the microbial and chemical water quality (WHO 2011). The pipes used in water distribution are made of different materials such as plastic, metals (galvanized steel, copper, lead and iron), and even concrete. Pipes made from concrete and plastic tend to be corrosion resistant. In piping systems, however, there are several water quality factors working singly ...

ABSTRACT

Carbon dioxide emission in the United States rose by 7% between 1990 and 2013. Scientists have continually raised concern over the implications of these increased levels of carbon dioxide. Evidently, such high emission levels pose a threat to the environment and life in general. The aim of the following essay is to: define weathering and identify the major classifications of weathering. The essay also clearly defines and illustrates the relationship that exists between carbon dioxide levels and the rate of chemical weathering. I will incisively discuss the combination of water and atmospheric carbon dioxide to form carbonic acid. This ...

The aim of the experiment was to identify the functional group of the two unknown organic compounds.

Method

Step 1: Test for acidity and basicity of the unknown by a universal indicator Step 2: Test for the capacity of the unknown to be oxidized by KMnO4 Step 3: Test for the capacity of the unknown to be reduced by a Tollen reagent Step 4: Test for the presence of a carbonyl group in the unknown using 2, 4-DNP Step 5: Test for the presence of an alcohol group in ...

Introduction

Drugs may be categorized through the chemical form of the ingredient which is active or even through the method it is utilized to treat specific conditions. It will as a result be realized that each drug may possibly be categorized into several drug classes. By definition, antacids are actually agents which purely neutralize gastric acid as well as raising the pH of gastric. They are in most cases utilized to treat dyspepsia plus peptic ulcer symptomatic relief. Antacids are in fact a form of medication which can possibly control the levels of acid in stomach. It will be documented that they ...

Answers

- The differences between the cardiovascular diseases and the coronary heart diseases

The major differences between these two types of diseases relates to the vascular components of the cardiovascular system. This simply means that the cardiovascular diseases do not only involve the heart alone but also involves all the heart linked vessels. i.e all arteries, veins and lymphatics found to be associated with the heart and blood passes to and from the heart. However, the coronary heart diseases only relate to the vessels that are within the heart itself and supply the heart itself and also the muscles of ...

Abstract

The method of Enhanced Geothermal Systems (EGS) focus on the exploitation from the heat contained in deep warm rocks associated with restricted penetrability. Although that particular extraction is just feasible when the reservoir penetrability is actually sufficient to make sure a liquid circulation in between injection as well as production water springs. Financial utilization associated with enhanced geothermal systems has to do with normal or even induced nutrient precipitation as well as associated reduction in permeability from those methods even though it might inhibit liquid flow within well casings or even in rocky fractures as well as therefore decrease heat ...

Homeostasis means highly complex interactions, which are regulated to maintain the balance within the body of humans. Homeostasis establishes optimum conditions within an organism thereby this balance is required for the normal and proper functioning of the body. To perform the division of labor Homeostasis is divided into sub categories like temperature and acid-base homeostasis. Acid base homeostasis deals with the pH of the body. Any organism’s body is highly sensitive to maintain a level of its pH such metabolic pathways exist which maintain its normal level. PH is very important to maintain as more than 70% of ...

Abstract

Water is one of the fundamental requirements for any form of living thing on earth. It is known for the many vital roles that it plays in the continued survival of animals and growth of plants. In animals, water plays an essential role in maintaining many processes that take place both in the system of the animal and the outside world as well. Water acts as a medium through which most chemical reactions take place within the body system of all animals. In plants, it plays several roles, mainly by allowing the absorption of dissolved nutrients and mineral salts present ...

Impact of climatic change on the Great Barrier Reef

Climatic changes refer to lasting and significant changes in the weather patterns characterized by statistical distribution over a period spanning decades or hundred thousands of years. These changes may encompass extreme weather conditions and may happen due to variations in solar radiation reaching earth, biotic processes, volcanic eruptions, melting of the polar caps and plate tectonics. Certain activities undertaken by humans have also been recognized as contributing to negative climatic changes such as global warming. This climate change has threatened earth's ecosystems. The recent harsh change in the climate such as an increase in temperature takes a great toll on the ...

OBSERVATIONS

Since I entered into a formal institution, and we happen to study the evolution, I have always been left amazed and wondered on how living beings came to be. Because it was in my primary level, I always thought of it as just a mere story. I could hear that people were once using their four limbs for movement like the monkeys. I could also read that we evolved from the primate family which consists the likes of the chimpanzees, monkeys, baboons, and we later came to become what we are today. My grandparents could tell me stories of how the ...

INTRODUCTION

Baghouse filters are fabric filter units consisting of one or more isolated sections containing an array of fabric bags (Vatavuk, 1998). Shapes of these bags range from round, flat, tube-shaped, to pleated cartridges. In theory, gas containing high particulate matter level passes through the fabric bag surface. The particulate matter is retained while the cleaned gas is either recycled to the process or vented off the exhaust. This paper attempts to discuss the different concepts behind baghouse filters in relation to environmental engineering. Specifically, this paper discusses (a) particle pollution, (b) baghouse filter principle, (c) filter media selection, (d) types of ...

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Ecology Abstract The predictability of radish (Raphanussativus) seed germination was investigated using student T number-1 and tuckey test with the data collected from the measuring root length after being treated with different factors. Radish seeds are an edible root vegetable that was domesticated in Europe and pre-Roman times. Its significance as a vegetable is considered to be due to its short period of emergence. In order to manage radishes, we gathered more detailed information required on its seed bank dynamics. Conducting this experiment helped us gather more knowledge of the factors regulating germination radish seeds. These information helped ...

TEMPRANILLO

Tempranillo is one of the grape varieties grown in various regions of the world for making wine. The grape species mature much earlier than the red grapes in Spain. Originally, Tempranillo was dry grown (Intrigliolo D. and Castel J, 2008). However, irrigation has increased drastically in Spain for the past few decades. Tempranillo was grown in Liberia in ancient times; when Phoenicians settled in Liberia. There are several regions in the world that grow Tempranillo. The main ones include Spain and Portugal. However, it is also grown is some parts of USA and Australia. These regions have different ...

Part I

The various foodstuffs, liquids and other substances that were tested for their basicity or acidity include; lemon juice, sprite, milk, green tea and shampoo. The shampoo liquid changed the blue litmus paper pink while the red litmus paper remained red. This indicated that shampoo is a weak acid. The lemon juice turned the blue litmus paper red while the red litmus remained red. Therefore, lemon juice is a strong acid and that is why it tests sour. In addition, sprite made the blue litmus paper turn pink while the red litmus paper remained red. On the other hand, the green tea was ...

Chapter 8

Chemicals in action An acid and base reaction occurs when a complete exchange of electrons between the proton donor and proton acceptor occurs. In this process a salt if formed. In the definition, a salt is a substance formed from an acid by its replaceable hydrogen either wholly or partially by a metal or an equivalent radicle. Example of salt formation Mg+H2SO4→MgSO4+H2 Mg+HCl→MgCl2+H2 In the modern ionic theory, a salt is a compound of oppositely charged ions. From this point of view, there is no difference between NaCl and NaOH. Further, anhydrous aluminum chloride is not a ...

Origins of the vine and grape

The barbera grapes are anciently and traditionally grown in central Piemonte, Italy. Barbera grapes are supposed to have ancient origin like many other grapes. It is, however, found to be documented since 17th century. In an official document, in 1798, the wine was cited by Count Giuseppe Nuvolone-Pergamo of Scandaluzzo, deputy director of the Società Agraria di Torino (Agrarian Society of Turin) (Barbera Wine, n.d.). There are documents in the city hall of Nizza Monferrato that also mentions about the growing of this variety of grapes in 16th century (Sonkin, n.d.). Barbera is a dark-skinned grape. The red grape ...

The article in National Geographic Magazine was entitled “Ocean Acidification”. It was written by Elizabeth Kolbert and the photographs were taken by David Liittschwager. The article discusses the acidity of the sea and how carbon dioxide and harmful greenhouse gases are seeping into the ocean and affecting life in the water. The study takes place in two locations, the first is in Castello Aragones, which is west of Naples, and the second location is in Australia, by the sea in the Great Barrier Reef of Queensland. The article first explains why the locations were chosen and what was ...

Abstract

Enzymes are biological catalysts and work by speeding up the rate of chemical reactions. The factors that affect enzyme activity include enzyme concentration, temperature, pH, and the substrate concentration. This experiment aimed to determine the effect of lemon juice, which is acidic on the activity of catechol oxidase enzyme. According to the results, high acidity inactivates the catechol oxidase enzyme. The optimum pH level for catechol oxidase enzyme can, therefore, be said to be pH 6.

Introduction

Enzymes are biological catalysts and work by speeding up the rate of chemical reactions. The enzymes achieve this by reducing the amount of ...

` The movie outlines the causes of ocean acidification as simple and easy to remedy in the following outline. Ocean acidification occurs because of burning fossil fuels in the atmosphere. The carbon dioxide released from these fuels is dissolved in the ocean water forming carbonic acid. The beginning of the industrial revolution saw an increase in industries burning fossil fuels and subsequently led to an increase of carbon dioxide released into the air. The process involved in the acidification of the ocean is a chemical one where, as carbon dioxide is dissolved in the ocean water, it reacts with the water ...

Abstract

The purpose of this study is to analyze the organ systems that were studies previously in class and determine the common disease connected with one of the following systems: integument system, skeletal system, digestive system, and urinary system of the human. I have chosen the digestive system due to the fact it unites a set of vital organs. With the malfunction of at least one of them the whole body will be influenced by the consequences. The organ which was chosen to be studied is stomach. The first part of the case study includes the brief analysis of the preferred ...

Biodiversity and sustainability, two of the major factors to determine if an ecosystem is habitable and sufficient for any life form, may it be fauna, fawn or human kind. However, there are only a few sites left around the globe which can be considered sustainable and contains biodiversity as climate change continues to affect the planet. Some areas have become barren, while a few remained arable but in the risk of being converted into commercial lands for homes or businesses. In the United States, the problem of pollution not only affected its once diverse ecosystem, which is considered the home of ...

Abstract

The paper articulates the electrolyte and fluid study by describing functions and location of various body fluids and factors that affects variations in fluid compartments. These body fluids involves Body fluids involve blood plasma, mucus and lymphatic fluid, saliva and gastric juice, and other fluids such as tears, sweat, semen and vaginal secretions. The functions, regulation, sources and losses of the main electrolytes in the body are also described. The paper also outlines the basic principles of some of the processes that occur in human body such as osmosis, filtration, active transport and diffusion. In order to understand ...

Global warming is the rise in the atmospheric temperature. This increase in temperature is caused by the release of greenhouse gases to the environment. This article cites global warming as the real cause of climate change. Release of greenhouse gases is vast in the more industrialized countries. Burning of fossils has also contributed greatly to the increase of global warming. However, global warming has affected many parts of the world differently. Some parts have mild effects while others have severe effects. An increase in the atmospheric temperature has increased agricultural productivity. Increased rainfall and warmth in the atmosphere ...

Regulation of body pH occurs either through pH regulation or pH compensation. Regulation occurs as a combined effort of buffer systems, and respiratory and renal systems. Normal metabolism produces acidic wastes, for example, carbonic and lactic acid. These products increase acidity of body fluids and cause a shift in body pH away from the normal alkaline nature. Buffers help to prevent the shift towards an acidosis, and hence maintain pH of the blood and the body. Buffers also facilitate maintenance of narrow pH ranges of body fluids. Maintenance of this narrow range is crucial since biochemical reactions are affected by concentration ...

Many scientists argue that oceanic acidification, which is said to arise from dissolving of artificial carbon dioxide emissions, has serious impacts to both the land and sea life. Besides, scientists equate oceanic acidification to the evils of global warming. However, in this essay, we argue that oceanic acidification does not pose much threat to either land or sea life, and it should not be such a significant environmental concern. Oceanic acidification, from artificial carbon dioxide emissions, is said to cause a decrease in PH level of the ocean, thus interfering with marine life. However, I refute this point because a decrease ...

Homeostasis is the propensity of an organism/a cell to direct its internal situation, typically by a system of reaction controls, for the health and functioning to be stablelized, despite the outside altering conditions. The capability of the body /a cell is to look for and uphold the state of stability inside its internal environment while it’s dealing with the outside changes. Homeostasis takes place when the body regulates its temperature so as to try maintaining an inner temperature.eg in hot days we sweat to cool off, also we shiver to generate heat in the cold season. Homeostasis use hormones to ...

Extra virgin olive oil is the purest of the classes of olive oil being produced globally. It unique taste, free acidity and well refined output with no additives distinguishes it from other categories of olive oil. This remains the secret of success of extra virgin olive oil over the years. Those positive attributes complement production practices and dedication of the extra virgin oil producers. The health benefits found to be associated with the oil and wide array of use contributed greatly to the uniqueness of the extra virgin olive oil. Recent studies have shown that a component of extra virgin ...

This study creates awareness about the advantages of consuming olive oil in our daily lives. This research on olive oil, done from two different online sources, mentions the history, making, types and benefits of olive oil, which have been present and observed for a long time. After studying the facts presented in this research I came to the conclusion that the extra virgin olive oil is very healthy and its consumption can help reduce a lot of medical problems. Unawareness about the benefits of olive oil has kept me in the dark about observing healthy tips and guarding my entire body ...

Background theory

Equipment used in the experiment: Burette, pipette, pipette filler, clamp and stand, a small and a large beaker, three conical flasks, white paper, phenolphthalein indictor, dilute solutions of HCl and H2SO4 of unknown molarities, and 0.10 dm–3 NaOH.

Equations, diagrams, and calculations:

Concentration of the sulphuric acid solution Molarity of the alkaline solution of NaOH 0.10 mol. dm–3 As found in the experiment, Average volume of H2SO4 is 11.15 cm3 = 0.01115 dm3 H2SO4 → H2+ + SO4– NaOH →Na++ OH– H2+ + SO4–+ 2Na + 2OH → Na2+ + SO4–+ 2H2 O Thus, the hydrogen ions in H2SO4 reacted with hydroxide ions ...

Abstract

This experiment sort to find an accurate and most viable method that would be used in laboratories to the measurement of iron concentration in aqueous samples. The methodologies that were identified for further analysis included; colorimetric assay (molecular spectroscopy), flame atomic absorption spectroscopy, redox titration (volumetric) and cation exchange chromatography (EMA technique). These methods were analyzed of their advantages and later subjected to a validation test. In the process, a wide range of CRMs were used alongside six other samples that contained unknown iron concentration.

The experiment was thus, geared towards providing answers to statements like; the necessity of quantification of ...