How To Calculate Experimental Error in Chemistry

Error is a measure of accuracy of the values in your experiment. It is important to be able to calculate experimental error, but there is more than one way to calculate and express it. Here are the most common ways to calculate experimental error: Error Formula In general, error is the difference between an accepted or theoretical value and an experimental value. Error Experimental Value - Known Value Relative Error Formula Relative Error Error / Known Value Percent Error  Formula % Error Relative Error x 100% Example Error Calculations Lets say a researcher measures the mass of a sample to be 5.51 grams. The actual mass of the sample is known to be 5.80 grams. Calculate the error of the measurement. Experimental Value 5.51 gramsKnown Value 5.80 grams Error Experimental Value - Known ValueError 5.51 g - 5.80 gramsError - 0.29 grams Relative Error Error / Known ValueRelative Error - 0.29 g / 5.80 gramsRelative Error - 0.050 % Error Relative Error x 100%% Error - 0.050 x 100%% Error - 5.0%

The Impact of Humans on the Biological Diversity of...

The Impact of Humans on the Biological Diversity of Natural Ecosystems Introduction Since humans have come into existence they have always been a cause of change of whatever natural areas they inhabit along with the living organisms of those natural areas. The different types of organisms such as plants, animals, and microorganisms that inhabit these areas are known as biological diversity or biodiversity. (USEPA 2010 ) Biological diversity can be affected by many different things, climate change, and area being two specific things. Humans fit into a strange niche of biological diversity. While we have a part of biodiversity and in ecosystems, the human race has spread much farther than any other breed or type of organism except for†¦show more content†¦Eventually all rivers lead and empty out into oceans which means said chemicals are dumped into the ocean. These chemicals, waste, and debris float freely into the human population water supply and into the animals of aquatic systems water supply and habitats. These animals are exposed to the companies†™ byproducts and they affect the life span, and habitat quality of the animals. Yet again human population growth can cause extinction of species, populations, communities, etc. due to the lack of regard or concern of how the biodiversity of natural ecosystems affects all species in the long run. White 4 Landscape Conservation Though humans have made a huge impact on the biodiversity of many and most ecosystems; it is recognized that for as much damage has been caused there should be some type of effort to improve and try to restore the biodiversity in some ecosystems. So was created the National Landscape Conservation System in 1969 ( CSA 2009). The mission of this system is to â€Å"conserve, protect, and restore these nationally significant landscapes that have outstanding cultural, ecological, and scientific values for the benefit of current and future generations†. (CSA 2009 ) However this system of land conservation is solely interested can only benefit Western/American land. The goal is to protect the USA’s most prized beautiful lands from being lost to theShow MoreRelatedImpact Of Biodiversity On The Environment1267 Words   |  6 Pagesspecies were being lost at rapid rates from ecosystems. It is known that all organisms play important roles within their ecosystems being that organ isms interact with their ecosystem through feedback mechanisms (Cardinale, B. J., et al., 2012). If biodiversity is diminishing then food webs and ecosystems will also be disrupted. In humanity, Health cannot be sustained without a viable environment (Yassi, A., 2001). The primary cause of biodiversity loss is human activity. Any type of anthropogenic actionRead MoreBiodiversity. Biodiversity Is The Variability Among Living1684 Words   |  7 Pagesmarine and other aquatic ecosystems. This includes diversity within species, between species, and ecosystems. The three main aspects of biodiversity include genetic diversity, species diversity, and ecosystem diversity. Biodiversity levels can change over time due to long-term natural processes including habitat loss. The importance of biodiversity is vital to all life on earth, determining extinction, evolution, and the fate of our planet’s ecosystems. Genetic diversity is the key ingredient fromRead MoreEconomics to Biodiversity989 Words   |  4 Pagesentire educational process. ii. Economics of Biodiversity A main point which comes out as a difficulty is that ecosystem services are mixed public goods and therefore their regulation cannot be properly done even if they are at the point of depletion. With all the awareness and importance of the increasing need for biodiversity conservation and ecosystems use to the human welfare, degradation of biodiversity is still a huge problem which needs to be solved yet and hence fundamental changesRead MoreThe Importance of Biodiversity1521 Words   |  7 PagesConvention on Biological Diversity (CBD) from the 1992 Earth summit: ‘Biodiversity is the variability among living organisms from all sources, including terrestrial, marine, and other aquatic ecosystems and the ecological complexes of which they are part ; this includes diversity within species, between species and of ecosystems’ (Hambler, C., 2004, 11). Within planet earth today Biodiversity forms the foundation for the vast array of ecosystem services that critically contribute to human well beingRead MoreThe Importance Of Diversity Within Crops And Their Microbial Symbionts1260 Words   |  6 Pagesreflect food production systems that not only require constant human intervention, but also lack internal regulation. To address these economic and environmental issues, one key strategy would be to enhance the biodiversity in agroecosystems in order to model the homeostasis present in natural ecosystems. By understanding the importance of diversity within crops and their microbial symbionts, agroecosystems can benefit from a variety of natural services including nutrient cycling, soil fertility, and enhancedRead MoreImpact Of Biodiversity On The Environment1323 Words   |  6 Pages Furthermore, it is a proven fact that biodiversity changes influence â€Å"the flow of ecosystem services†, i.e. benefits that people receive from ecosystems, including such services as provisioning, cultural, and regulating ones (Perrings 1). The most acute group of services in terms of biodiversity connection with the environment concerns regulating services, which relate to control of biological variability, presence of pathogens and pests, emergence and mitigation of environmental hazards, as wellRead MoreFreshwater Is A Vital Necessity Of Life Essay1372 Words   |  6 Pagestheir exploitation as freshwater sources, few rivers can be found in their natural conditions due to pollution (Ngoye and Machina, 2004). Rivers form parts of aquatic ecosystems which provide ecosystem services that utilized mostly by humans and other organisms. The ecosystem services that are provided for by aquatic ecosystems that are utilized by humans include agricultural food crops, recreational purposes, biological control and management of insects and weeds (FAO, 2003). It is estimated thatRead MoreMarine Biodiversity : A Global Pattern Essay1461 Words   |  6 PagesAccording to the definition of the Convention on Biological Diversity, biodiversity is the variability among living organisms from all sources, including inter alia, terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are part; this includes diversity within species, between species and of ecosystems. Why Marine Biodiversity Is a global pattern: Biodiversity is essential for the benefits the ecosystems can provide to humans. Biodiversity effects a larger number ofRead MoreIntroduction Knowledge has always been transferred from older generation to younger generations700 Words   |  3 Pagessources laying down the importance of the traditional knowledge, as pre-scientific traditional systems of management have been the main means by which the traditional societies have managed natural resources for millennia . Thus biodiversity conservation holds primary importance for sustainable use of the natural resources especially at a time which when the common resources which should be judiciously exploited are being exploited in arbitrary manner. The Role of Traditional Knowledge in BidoversityRead MoreApes Chapter 3 Questions1225 Words   |  5 Pagesmost forms of life. 9. Explain the following terms: abiotic, biotic, range of tolerance. Abiotic consists of non-living components such as water, air, nutrients, and solar energy. Biotic consists of biological components such as producers, consumers, and decomposers. Each population in an ecosystem has a range of tolerance to variations in its physical and chemical environment. 10. Explain how limiting factors can control population size. Too much or too little of any abiotic factor can limit

What is popular culture Essay Summary Example For Students

What is popular culture? Essay Summary Deconstructionist writers like Derrida and De Sassure focus on theories that fragment metanarratives or truth. Their focus is on plurality of knowledge by way of multiple interpretations of signs like those in mass media and consumer culture (Beaudrillard, 1988). In this way, it is no longer possible to utilise one narrative, as signs in consumer culture are pastiched and can provide plural meanings rather than contradictory ones. While for Baudrillard and Lyotard, plurality is the demise of the authentic and therefore the end of modernity, Kumar, describes the extension of modernity in saying the combination of many traditions to form a new, rather than rejection of the old tradition. (Kumar,1995,105) Kumar explains that it is not clear that postmodernity has begun, nor that modernity is clearly over. Rather than it being a clearly demarcated phase, it is described as unevenly loose process that is clearly happening where There is simply a more or less random directionless flux across all sections of society. (Kumar, 1995, 103). He perceives these changes to be consistent with postmodernism but realizes there is no guiding principle for the change as for example in Marxist theory and capitalism. Other key writers advocating for the relevance of modernism, are Smart, Lash Ury, Crook and Habermas. Crook (1992) critiques Habermas by arguing that we are in an advanced state of modernism or known as late modernism rather than postmodernism. He argues that if capitalism is associated with modernism, then advanced rationalisation and comodification can only mean we are in a high level of modernism. Crook prefers to sit more on the fence and although advises against nostalgia for modernism he explains it is too early to predict the postmodern condition but also premature to say modernism is over (Crook et al, 1992). Meta narratives like progress and rationality are still sought as the final end. To conclude this briefing, an understanding of postmodernism in the absence of a clearly guided definition has been provided. Potmodernism referred to the breakdown of modernity or at least the transformation of modernity. This briefing discussed that where modernism meant the embracing of universal truths like progress, reason and rationality, postmodernism could be seen in two ways; abandonment of the modern for the pursuit of a different approach or the extension of modernity. Under this scenario, I discussed the blurring of different knowledge. The question remains to be clarified as to whether western society is in a modern or postmodern reality. Given the Bush administrations post September 11 warfare, the pursuit for truth like freedom and liberty has widened the gap between modern and postmodern thinking at a global level and polarized those who believe in universal truths and those that do not.

The History of the Nazis free essay sample

This paper discusses the Nazis regimes rise to power and its political activities. This paper takes the reader into an exploratory journey through the rise of the Nazis from 1918-1939. The author discusses Adolf Hitlers rise to power, the partys political agenda and its expansion nationwide. Furthermore, it urges the reader to remember the evil the Nazis caused humanity in order to prevent history from repeating itself. In 1939 the war of the world included the United States anger and coupled with allies the Nazis were finally defeated. The rise and fall of the Nazis is something that we must never forget. A man with a charismatic speaking ability, and a nation with economic troubles was all it took to grow one of the biggest monsters in the history of the world. The Nazi regime still lives. It is in corners, and web sites and meetings that are around the world. We will write a custom essay sample on The History of the Nazis or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page We must never let them grow, and we must never let them win again.

A Guide For Students Writing A Great Discursive Essay

A Guide For Students Writing A Great Discursive Essay Discursive Essay: Topic and Structure Many people have at least one impartial friend. A disinterested friend is one who is exceptionally mature, never takes sides, and fair in all situations. That friend is similar to a discursive essay that we will elaborate in this article. Discursive essays are well known for being impartial; they take distance from complex issues. These essays would consider all possible outcomes from any given situation and makes conclusions based on the analysis. Discursive essays are more or less the same as that impartial friend you have who is willing to listen to your situation but avoids being emotionally attached in the issue under consideration. On the other hand, there is that friend we have who cant avoid taking sides on issues and will quickly get emotionally attached to a problem. This particular folk react readily and would always find a side to support. They would argue in support of this given side they have chosen until the end. This individual is very different from the discursive essay but conforms to the values of an argumentative essay. At times, they can relate to a persuasive essay. After reading this article, you will understand the best way of drafting a flawless discursive essay. It will be easier for you handling assignment on the discursive essay and will help you get a passing grade or even more. What is a Discursive Essay? A discursive essay is a kind of essay that would seek to explain all possible views and positions in a given topic, subject, or issue at hand. The main issue why students are given discursive essays is to determine whether a student can remain neutral on a given issue and overlook on the most charged opinions (How to Write an Amazing Discursive Essay (2019 Guide), 2019). You need to demonstrate to your teacher that even though you have your stand on some issues, you are capable of putting them aside and look at things logically. The most unusual types of discursive essays take silent steps and examine every shade of an issue. Example of an impartial friend still applies. You may decide to go to your best friend and inform him/her how your roommate failed you for lunch despite confirming to come. No matter how you present your statement, that impartial friend will still remain impartial and would replay and say: Well, in one perspective, that sounds rude and was not the best thing to do more so after confirming attendance lunch. In this modern time, there is no point why one would fail to give notification of not attending to your invitation. Communication is straightforward and just sending a text message was enough to settle everything. However, looking at the issue from another angle, you might find out that your friend got a demanding task that left her little time to even communicate to you. I have heard her complain severally that her cellular device is poor while in office. Besides, her parents are such strict, so she seems, to have weird issues when it comes to disappointing people. Like an impartial friend, discursive essays do not jump into conclusions even when an issue seems to be in black and white. Even when something appears to be simple, it is never that simple. Just a fraction of items in the whole world is simple. Thus, discursive essay gives students an excellent opportunity to critically look at issues and identify any connection existing in them. Structure of a Discursive Essay Nothing is unique when it comes to formatting. A discursive essay has similar structure like other essays you know. In your introduction, you need to start with a hook that connects to the rest of the essay and motivates the reader to continue reading. Other sentences would then discuss the background of the issue and how it connects to the current world. A discursive essay is one of the most challenging writing tasks as you need to develop a thesis statement that does not side with any part. I am sure you are used to writing those thesis statements that are definitive and would easily guide readers towards the direction the paper takes. The thesis statement for your discursive essay should maintain your two sides throughout your piece. For instance, you can decide to give a thesis like this: Although many people believe that death penalty should be eliminated as it is morally wrong, there are those who think that it should be administered as failure to administer it would deny victims justice. The above thesis statement has taken into consideration two possible perceptions that would be discussed. Every paragraph should not mix the two discussions but rather dwell on one. For example, if you are discussing on the immorality of death penalty, you need to equally have other two paragraphs that discuss on the pros of the death penalty. Also if you decide to write one paragraph for the death penalty, you will also have to write another one article to counter your claim. This should be effectively achieved regardless of your actual beliefs of the claim. Each side should be treated equally and should be similar in size and even word count. Concluding a discursive essay is different from the past conclusions students are conversant with while writing their assignments. But with this essay, you will start your conclusion by assessing all your evidence. While doing this remember not to define your stand but make more sense in your writing. Again, we make our references to an impartial friend who never takes sides no matter what. An impartial friend will never take a side but will weigh on issues and provide a response based on reality. In the above case of missed lunch, a disinterested friend will claim that it was not right for someone to lose lunch when plans had been made early. Though the friend might not be in a position to call or text, she could have sent you an email. All in all, we are human beings and one need to consider many options. The dream job your friend tried hard to get turned distracted her from her social life. She can work for almost 12 hours a day. In this statement, the conclusion will give more clarification but does not take sides with the issue. Also, in other essays, you will have to talk about your main points discussed in your body but using a new version of the language to avoid sounding repetitive. Some instructors will advise their students to give their viewpoint at the end of a discursive essay. This is not a true discursive essay but rather a semi-discursive essay. A purely discursive essay will not take sides even in conclusion. The ability of the composition to remain neutral throughout makes it strong compared with other essays that would change its focus at any point. A Template For Discursive Essays A hook sentence (quote or statistics) aimed at capturing the attention of your readers while showing them the purpose of your essay Background sentence Background sentence that is linking two discursive sides of your essay Transitional sentence Thesis statement: looking at truthfulness of the two sides Topic sentence that supports a give side of your topic Discussion on the relevance of your claim Supporting information on the details provided Detailed explanation on why you view is valid Topic sentence to support supporting the other view that opposes the thesis statement Important descriptions Further description or supportive information Discussing relevance of your opinion A nuanced discussion on the two opposing sides, stating validity of the two viewpoints without taking any concrete stand Revisit the first major point Revisit the second major point Revisit the third major point Revisit the fourth major point Connect the two perspectives of your thesis statement to a wide issue in existing either in the world or humanity. Steps of Writing Discursive Essays You need to choose a popular topic so you will have more content to write on. On your rough book, note down all basic points that will support one side of your thesis. Repeat the same for the remaining part of your thesis. Look for available quotes or statistics that are in line with your topic. Identify the one you like most and make it a hook for your readers. In this step, use two or three sentences to discuss the background of your issue. Design a thesis statement that summarizes the two sides of your topic. Use the first paragraph of your body to discuss on one perspective of this topic as well as the main points supporting it. Go deep and make your readers understand that you know the aspect inside out. (If you teacher wants a more extended essay, make sure to add paragraph). Repeat this in the following paragraph. Write an exciting opening sentence to conclude your work that revisits all that has been discussed in your essay. Do this is a way that will clarify your essay your points. Summarize your main points and give if possible your preference but do not be so open to it. Connect your points to the rest of your paper on the particular issue in the society, larger picture, or human existence. Topics on Discursive Essay Are two-parent homes more superior compared to single-parent homes? Do you believe that middle children in the family are under-achievers? Do you believe that exposing young children to violent media prepare them to the future realities in life or it will make them more violent like what they see? Do children growing with pets behave in a more adjusted life in their adulthood? Should religious institutions be taxed? Do social media have a role to play in controlling online bullying and troll irrespective of the first amendment bill? Do you believe that people who walk to work or ride on their bicycle should have reduced tax? The best teacher is a failure. Largest governments on the planet always try to stifle the economy of the country it controls. Children who are grown in the suburbs might not reach their full potential as these areas lack enough experiences children need. Example of a Discursive Essay Success is a lousy teacher. It seduces smart people into thinking they cant lose. This is a basic statement that was spoken by the richest man on earth, Bill Gates. If you sample some wealthiest people on earth, they seem to have one common understanding about success. They think that success is fickle in giving useful lessons that should be used while giving instructions. Any critical person will agree that failure has its own lessons to teach people. Even if it offers instructions, is it a better teacher than success? Both success and failure have lessons to teach us in life. But the main question remains if one is best compared to the other in a personal level development. In this essay, we will examine each experience in a more detailed way giving values of both failure and success in forcing one to develop. Failure gives us instant lessons with the majority of them being the regular lessons. Failure will show brilliant individuals that they are can also fail. Not all projects they venture it will eventually be successful, or like by the public. Failure is a mirror in peoples lives, and it helps them to re-examine themselves on the mistakes they might have done in the past. One will think of where something was overestimated/underestimated or even miscalculated. Failure will teach you and endure all levels of success like introspection that we tend to avoid. If allowed, the collapse will usher in a series of mistakes. All these mistakes should be fixed first before proceeding with the journey. Thus, failure is experiential learning that gives us an accurate picture of what we expect to get if we behave in a specific manner. The moment a person decides to embrace failure; he/she will endure all moments of break-down encountered on the way. This is experimentation that paves in great innov ation and discoveries that has changed the planet. Additionally, it makes one venture in the possible growth of emotional intelligence. This is because failure is accompanied by a sense of embarrassment.   Failure leaves you with nothing but to pick yourself up and try again. This will help but rather force one to forge ahead concerning grit, character, and resilience. On the other side, we have neglected the power success has to teach on the right paths of life. As one renewed entrepreneur said, you can own success but rather rent it, but even after renting it you have to understand that its rent is due every day. That is why we find successful people competing with each other daily. They have noticed that their success is not everlasting and they need to work hard in order to maintain their success. Success has forced them into a competition on a rigorous playing ground bringing them to this challenging battle. If they have to succeed in their ventures, then they need to be phenomenal. All successful individuals learn in a rather quick manner, and they leave their practices that do not make them succeed quickly to focus forward. In conclusion, both failure and success give specific opportunities and lessons for our growth. Identifying which one is best to use is very hard and might take quite a long some time. On the one hand, failure comforts one to confront failure with more energy and approach every situation experimentally. On the side of success, it offers individuals constant power to work smarter to maintain their excellence. In the process, they connect with other successful people whom they share ideas with. Both experiences drawn from the two offers an individual opportunity to grow. Failure should be treated as a circumstance that is unavoidable if one has to succeed in life. A discursive essay provides one with an opportunity to step into another persons impartial friend. When in this position, you get a chance to examine all places that may be surrounding a given situation or idea. Many people will not do these easily. Also, discursive essays give one the freedom not to argue or convince readers on a particular idea. Instead, your work is to shed light on some ideas that are not well understood by the public. If you need professional feedback regarding your essay or you need help with writing, we are here for you. Feel free to contact us at any time. Whether you need feedback or assistance with your essay, remember you are the reason why we are here. Our professional writers will help you any time you need to write a flawless article that will impress your instructor.

Free Essays on Competitive Strategies

Competitive Strategies Though unwritten, survival is perhaps the fundamental challenge for a business. With a lot of competitors out there, it’s a dog eat dog world out there. And as they say, eat or be eaten. To survive and stand out, companies should outperform their competitors. There’s a whole lot more to it than merely building satisfactory products. Building customers and focusing on relationship marketing is the challenge. While it is customary for business to focus on attracting customers, the emphasis nowadays seems to lean towards relationship marketing. This marketing task encompasses creating, maintaining, and enhancing strong relationships with customers and other stakeholders. Beyond designing strategies to gain new customers, companies are making efforts to retain their current customers and build profitable, long-term relationships with them. The key to building lasting relationships is creating superior customer value and satisfaction. This results to customer satisfaction when a company’s performance has fulfilled buyers’ expectations. To create customer value and satisfaction, and to retain customers, companies must manage their value chains and value-delivery networks in a customer-oriented way. And in order to prepare an effective marketing strategy, a company must consider its competitors as well as its customers. They need to identify their major competitors and assesses their objectives, strategies, strengths, and weaknesses, and reaction patterns in order to develop a strong competitive advantage over them. I personally agree that determining which competitive marketing strategy to use will depend on the position of the business in the market. A market leader, for example, has to focus on expanding their market, protecting their market share, and expanding their market share.... Free Essays on Competitive Strategies Free Essays on Competitive Strategies Competitive Strategies Though unwritten, survival is perhaps the fundamental challenge for a business. With a lot of competitors out there, it’s a dog eat dog world out there. And as they say, eat or be eaten. To survive and stand out, companies should outperform their competitors. There’s a whole lot more to it than merely building satisfactory products. Building customers and focusing on relationship marketing is the challenge. While it is customary for business to focus on attracting customers, the emphasis nowadays seems to lean towards relationship marketing. This marketing task encompasses creating, maintaining, and enhancing strong relationships with customers and other stakeholders. Beyond designing strategies to gain new customers, companies are making efforts to retain their current customers and build profitable, long-term relationships with them. The key to building lasting relationships is creating superior customer value and satisfaction. This results to customer satisfaction when a company’s performance has fulfilled buyers’ expectations. To create customer value and satisfaction, and to retain customers, companies must manage their value chains and value-delivery networks in a customer-oriented way. And in order to prepare an effective marketing strategy, a company must consider its competitors as well as its customers. They need to identify their major competitors and assesses their objectives, strategies, strengths, and weaknesses, and reaction patterns in order to develop a strong competitive advantage over them. I personally agree that determining which competitive marketing strategy to use will depend on the position of the business in the market. A market leader, for example, has to focus on expanding their market, protecting their market share, and expanding their market share....

Case study project for Engineering Graphics & Design

Project for Engineering Graphics & Design - Case Study Example The study involved a case where energy storage system can detect the frequency of the power output, and controls this frequency automatically to arrive at the required frequency of the power output. The study assumes an introduction of wind power generation at 1/10 of the power system capacity, and investigates the use of energy storage using a dead band control, contrary to using a high-pass filter type of control. The proposed approach seeks to regulate frequency deviations resulting from power output fluctuations, as well as the respective fluctuations related to the system load. The study aims at understanding the results of a simulation concerning performance control and charge and discharge power on frequency deviations. Moreover, the study evaluates the total energy storage capacity of the battery that is fit to hold a specific range of fluctuations. The study assumed application of a battery system to store energy with a dead band to counteract the effects of frequency fluctu ations