What Is Decantation and How Does It Work

Decantation is a process to separate mixtures  by removing a liquid layer that is free of a precipitate, or the solids deposited from a solution.  The purpose may be to obtain a decant (liquid free from particulates) or to recover the precipitate. Decantation relies on gravity to pull precipitate out of the solution, so there is always some loss of product, either from the precipitate not fully falling out of the solution or from liquid remaining when separating it from the solid portion. The Decanter A piece of glassware called a decanter is used to perform decantation. There are several decanter designs. A simple version is a wine decanter, which has a wide body and a narrow neck. When wine is poured, solids stay in the base of the decanter. In the case of wine, the solid is usually potassium bitartrate crystals.  For chemistry separations, a decanter may have a stopcock or valve to drain the precipitate or dense liquid, or it may have a partition to separate fractions. How Decanting Works Decanting is done to separate particulates from a liquid by allowing the solids to settle to the bottom of the mixture and pouring off the particle-free part of the liquid. Examples of Decantation For example, a mixture (possibly from a precipitation reaction) is allowed to stand so that gravity has time to pull the solid to the bottom of a container. The process is called sedimentation. Using gravity works only when the solid is less dense than the liquid. Clear water may be obtained from mud by simply allowing time for the solids to separate from the water. The separation may be enhanced using centrifugation. If a centrifuge is used, the solid may be compacted into a pellet, making it possible to pour off the decant with minimal loss of liquid or solid. Separating 2 or More Liquids Another method is to allow two  immiscible (unmixable) liquids to separate and the lighter liquid is poured or siphoned off. A common example is decantation of oil and vinegar. When a mixture of the two liquids is allowed to settle, the oil will float on top of the water so the two components may be separated. Kerosene and water can also be separated using decantation. The two forms of decantation may be combined. This is especially useful if its important to minimize the loss of a solid precipitate. In this case, the original mixture may be allowed to settle or may be centrifuged to separate the decant and sediment. Rather than immediately drawing off the liquid, a second immiscible liquid may be added that is denser than the decant, and that doesnt react with the sediment. When this mixture is allowed to settle, the decant will float on top of the other liquid and sediment. All of the decant can be removed with minimal loss of precipitate (except a tiny amount that remains floating in the mixture). In an ideal situation, the immiscible liquid that was added has a high enough vapor pressure that it evaporates, leaving all of the sediment.

Conflict Theory Vs. Structural Functionalism - 978 Words

Conflict Theory vs. Structural Functionalism, this is like a fight between conservative and liberal. Structural Functionalism is a sociological theory that focuses on the structures of society and their functional significance (positive and negative consequences) for other structures (Ritzer, 2013). In another word, Structural Functionalism focuses on hierarchy, high position in the society. The theory is based on the belief that a person who held a high position like doctor or lawyer should get pay more because they make a lot of contribution to society. While on the other side, Conflict Theory â€Å"explains social structure and changes in it by arguing that actors pursue their interests in conflict with others and according to their resources for social organization† (COLLINS 414) it goes against with pretty much what Structural Functionalism stand for. With Conflict Theory, people in the society should be paid for how much they contributed, it stands for fairness. Conflict theory examines how society is stratified along class, race and ethnicity, gender, and age categories, and how these categories are linked to the unequal distribution of resources. Patterns of social interaction are inherent with benefits for some and deprivations for others. The goal for conflict theory is to understand the conflict between the advantaged and the disadvantaged while also taking action to reduce inequality (Sociology 662). One of the example the shows the conflict between Conflict TheoryShow MoreRelatedFunctionalism Vs. Conflict Theory1349 Words   |  6 PagesFunctionalism vs. Conflict Theory There are four known sociological theories and or theoretical perspective, and they are structural functionalism, conflict theory, symbolic interactionism, and feminism. These theories explain various aspects of social life through different perspective (OpenStax College 17). Some of the theories might view social life in a micro perspective, macro perspective or even both and each view might be completely opposing to each other, but it also has its pros and consRead MoreTheoretical Frameworks Of Sociology And Sociological Perspective Essay918 Words   |  4 Pagesimportant because common sense assumptions are usually based on limited observation. Common sense assumptions won’t help one understand how it affect us. Sociological perspective gives us a detailed insight about the individual and understanding how structural forces shape the individual and their action. Secondly, how does sociology differ from other disciplines such as history, anthropology or psychology? Sociology is the study of human society and social interaction, helping us understand the differentRead MoreCompare the Functionalist and Marxist Perspective on Society1104 Words   |  5 Pagesnearly impossible. There are many different sociological theories that attempt to explain how society or aspects of society work together. Different theories try to understand social behaviour at different levels of investigation. There are several perspectives on the sociology of education that are important. The two perspectives which are going to be looked at in this essay are Functionalism and Marxism. Although quite different, both Functionalism and Marxism have their similarities. They also haveRead MoreBenefits of American Education2214 Words   |  9 Pagesthat said, this essay will examine the impact the Sociological theories, Functionalism, Conflict, and Interactionism regard ing their impact on education. In sociology, a few theories provide broad perspectives that help to explain many different aspects of social life. These theories are so prominent that many consider them paradigms. Paradigms are philosophical and theoretical frameworks used within a discipline to formulate theories, generalizations, and the experiments performed in support ofRead MoreGun Violence1387 Words   |  6 Pages One theory in sociology that deals with this problem is structural functionalism theory.structural functionalism is a theory that is believed that society is like parts in a machine that work together to maintain progress and stability. This being said the society is becoming more and more unstable by new threaths and constant forms of panic. People in society believe that the government system is corrupt and we are slowly being brought down lower and lower each day in society. Structural functionalismRead More Girls Like Us Essay1063 Words   |  5 PagesCaucasion Catholic, DeYonna Moore is Afr ican-American with strong goals who lives with her Grandma and Raelene Cox is a young white girl who comes from a broken home with little parental guidence. Girls Like Us shows examples of structural functionism, and conflict theory, as well as symbolic interactionalism. This movie really intersted me because I actually got to see each of these girls grow up. This film also contained implications for the science of sociology. nbsp;nbsp;nbsp;nbsp;nbsp;IRead MoreConflict Theory1217 Words   |  5 PagesAccording to Conflict Theory, society is: †¢ A struggle for dominance among competing social groups (classes, genders, races, religions, etc.). When conflict theorists look at society, they see the social domination of subordinate groups through the power, authority, and coercion of dominant groups. In the conflict view, the most powerful members of dominant groups create the rules for success and opportunity in society, often denying subordinate groups such success and opportunities; thisRead MoreAnalysis Of The Walking Dead 1661 Words   |  7 Pagesthe series is mainly about fighting walkers. But as the seasons progress, the series focuses more on humans vs humans instead of humans vs zombies. Instead of joining hands to fend off the walkers, humans are still blood thirty and selfish. The point that a realist would make is that the human nature is fundamentally bad. People are driven by a desire to dominate others, form into conflict groups and perpetually compete for power. To confirm this notion, in Season 3 of the show, the Governor of WoodburyRead MoreConflict: Sociology and Ever-changing Nature2792 Words   |  12 PagesStrucutral functionalism is a form of  functional analysis. Functional analysis (or functionalism) is one of the major theoretical perspectives in sociology. In fact, many of the early giants of sociology, such as Spencer, Comte, and Durkheim were functionalists. Essentially, this perspective sees society as comprised of many parts that contribute in unique ways to the operation of the whole society.   The way I explain this to my class is to think of a clock. What makes a clock a clock? First,Read MoreUnderstanding Conflict Through Sociological Perspective Essay5342 Words   |  22 Pagesï » ¿Understanding Conflict Through Sociological Perspective Table of Contents 1. Acknowledgements 2 2. Table of contents 3 3. Introduction 4 4. Objectives 5 5. Research Methodology 5 6. What is Conflict? 6 7. Works of Karl Marx 9 8. Conflict of interest 12 9. Conflict perspective in sociology 13 10. In classical sociology 14 11. Modern approaches 17 12

The Novel The Kite Runner Essay Example For Students

The Novel The Kite Runner Essay Human nature is often paradoxical. People tend to believe that in order to obtain true happiness, there needs to be a price–a sacrifice. The price of happiness is inescapable, as it seems anything in life that involves happiness comes with a catch. The paradox is that once one makes a sacrifice to obtain the happiness they so desired, the guilt that comes from the sacrifice can destroy their happiness. Khaled Hosseini, famous novelist and founder of The Khaled Hosseini Foundation, captures the theme of sacrifice in his novel, The Kite Runner. Similarly, Ursula Guin, a distinguished American novelist and writer of short stories, conveys the need for sacrifice in order to have a utopian society in her short story, â€Å"The Ones Who Walk Away from Omelas.† Both literary works, The Kite Runner and â€Å"The Ones Who Walk Away from Omelas,† depict the paradox in human nature when it comes to sacrifice and happiness; however, the Kiterunner conveys this more effectively and convincingly due to its use of redemption.Summary: In â€Å"The Ones Who Walk Away from Omelas†, Omelas there is a city of guaranteed happiness, with people whoPoint 1:Happiness for the people of Omelas comes from the sacrifice of a child, while happiness for Amir comes from winning the affection of Baba with a blue kite at the expense of sacrificing Hassan’s innocence. Omelas is described as a perfect city and the people who live there are described as â€Å"happy†, â€Å"mature, intelligent, passionate adults whose liv es were not wretched (1549).† The narrator provides details in depth to convince the reader that Omelas truly is a perfect â€Å"city in a fairytale,† however, the narrator says, â€Å"But I wish I could describe it better. I wish I could convince you (1549). † The narrator is una. .the short story. This is why The Kite Runner holds more significance when it comes to sacrifice because the characters experience the full circle of sacrifice and redemption, rather than just half.Reflecting on human nature appears to show a vicious cycle in the pursuit of happiness and the sacrifices necessary to receive happiness. In both â€Å"The Ones Who Walk Away From Omelas† and The Kite Runner, there are sacrifices made to guarantee the contentment of the characters and this is what makes both fictional works more credible to readers. A paradox is revealed with the sacrifices as they lead to guilt for Amir and some, but not all, of the people of Omelas. Both characters in the two literary works are motivated by sacrificial guilt to leave but The Kite Runner shows the full cycle of redemption when Amir makes amends and returns to Afghanistan to save Hassan.

AP Lit Romanticism Test Info Flashcard

AP Lit Romanticism Test Info

Free Essays on Operations Management

Seagate Technology is a leading provider of technology and products allowing people to store, access, and manage information. The company is the world’s largest manufacturer of disc drives, magnetic discs, and read-write heads. In addition, they are the leading developer of business intelligence software. With increasingly valuable role storage is playing in the computer industry and across the internet, Seagate continues to drive new solutions for this important market, which also includes the burgeoning opportunity for storage-centric consumer devices such as digital video recorders and internet TV. Seagate employs approximately 60,000 people worldwide and can be found around the globe. Their offices are located in Malaysia, Singapore, Northern Ireland, Thailand, and the USA. Seagate supplies their products and services to many companies in the computer and financial industry such as IBM, Compaq, Prudential Securities, and Bear Stearns. Their standards include the ISO certification, which is a registration to an internal standard for quality whose requirements are aimed at achieving customer satisfaction by preventing nonconformity at all, stages from design through servicing (seagate.com). ISO9000 certification is sought to demonstrate capability to Seagate’s customers and it’s mechanism for internal improvement. Seagate’s website (www.seagate.com) offers customers a convenient way to purchase products and view the latest innovative products in technology. Additionally, Seagate.com offers the latest company news and quarterly reports (seagate.com). It is clear that in order for Seagate to succeed in the market place today, they must have a website. Seagate.com continues to find ways for customers to have a close look at their company profile and purchase products quickly and effectively. Like most companies, the goal for Seagate’s operations management team is to create value for their customer (Russell 5). The ... Free Essays on Operations Management Free Essays on Operations Management Seagate Technology is a leading provider of technology and products allowing people to store, access, and manage information. The company is the world’s largest manufacturer of disc drives, magnetic discs, and read-write heads. In addition, they are the leading developer of business intelligence software. With increasingly valuable role storage is playing in the computer industry and across the internet, Seagate continues to drive new solutions for this important market, which also includes the burgeoning opportunity for storage-centric consumer devices such as digital video recorders and internet TV. Seagate employs approximately 60,000 people worldwide and can be found around the globe. Their offices are located in Malaysia, Singapore, Northern Ireland, Thailand, and the USA. Seagate supplies their products and services to many companies in the computer and financial industry such as IBM, Compaq, Prudential Securities, and Bear Stearns. Their standards include the ISO certification, which is a registration to an internal standard for quality whose requirements are aimed at achieving customer satisfaction by preventing nonconformity at all, stages from design through servicing (seagate.com). ISO9000 certification is sought to demonstrate capability to Seagate’s customers and it’s mechanism for internal improvement. Seagate’s website (www.seagate.com) offers customers a convenient way to purchase products and view the latest innovative products in technology. Additionally, Seagate.com offers the latest company news and quarterly reports (seagate.com). It is clear that in order for Seagate to succeed in the market place today, they must have a website. Seagate.com continues to find ways for customers to have a close look at their company profile and purchase products quickly and effectively. Like most companies, the goal for Seagate’s operations management team is to create value for their customer (Russell 5). The ... Free Essays on Operations Management OPERATION AND OPERATIONS MANAGEMENT All organizations have operations.† A manufacturing company may conduct operations in a foundry, mill, or factory. Our interest is in the management of operations, or operations management (OM), including the usual management cycle of planning, implementing, and monitoring/controlling. The driving force for OM must be an overriding goal of continually improving service to customers, where customer means the next process as well as the final, external user.  § Since there is an operation element in every function of the enterprise, all people in all jobs in every department of the organization should team up for improvement of there own operations management elements. Teaming Up with Customers What happens when suppliers and customer are disconnected? Consider design work, for example. Whether we speak of goods or services, time- and distance separation in the supplier-customer connection invites trouble. Question: â€Å"What’s your Job?† Question: â€Å"But isn’t your job to serve the customer?† In grocery stores, where the supplier-relationship is immediate, the operations manager system is hard pressed to maintain a customer focus. The customer is the next process, or where the work goes next. A buyer’s customer is the associate in the department to whom the purchased item goes; a cost accountant’s customer is the manager who uses the accounting operations-where the design will be produced or the service provided. It is also clear that throughout the organization, people not only have customers, they are customers. Let’s turn our attention to what customers want. A Short List of Basic Customer Wants The requirement is a recipient’s or customer’s view of a good or service. A close partnership with the customer’s actual requirements. A close partnership with the customer helps create good specifications, increasing the supplier’s ability to f ulfill the customer’s needs. What else d...

Advanced Accounting Theory and Practice-Corporate social Coursework

Advanced Accounting Theory and Practice-Corporate social responsibilityCSRtheories - Coursework Example Starbuck engages in CSR due to its continuing commitment to help them contribute to economic development by being responsible to their respective stakeholders (Hancock, 2005, 12). The stakeholder theory maintains that a company should adopt policies that aim at satisfying numerous stakeholders because they are able to affect or are affected by the achievement of the company’s objectives. This theory regards the meaning of good management and how each individual can create value for each other. Starbuck’s involvement in CSR will help in the development of real opportunities for growth. By committing a responsible investment on the sector of the economy, the company is enhancing the social welfare of their stakeholders thereby resulting to economic growth thus enhancing the living standards of the stakeholders (Mullerat & Brennan, 2011, 89). According to integrative theories, a company should engage in CRS in order to integrate demand and concerns by their stakeholders and society because they depend on the society as well as the stakeholders for existence, continuity and growth. A CSR program will help Starbuck in recruiting and retaining employees because potential recruits the competitive graduate student market especially, often look at CSR policies of a company. CSR, therefore, delivers a much more positive perception of Starbuck among its workforce, particularly when they are involved through payroll giving fundraising or community volunteering activities (Hancock, 2005, 15). A company should take into consideration the social or stakeholder demand and integrate them in such a manner that they operate according to social norms and values. This is clearly spelt out by legitimacy theory. The theory states that a firm should operate within rules, norms and beliefs of their respective societies, and this is the reason why Starbuck has decided to pay tax on their British sales which they have been avoiding. They have received a legitimacy threat by

International Accounting Perspectives Coursework

International Accounting Perspectives - Coursework Example Being developed after an international consultation, international financial reporting standards are made after a due process. The standards are made through a process that consists of six stages. These includes setting the agenda, planning the project, developing and coming up with the discussion paper, developing and publishing the exposure draft, developing and publishing the standard and after the standard is issued. One of the major features of international financial standard includes fair presentation and complying with IFRS. This implies that all the transactions must be represented in a faithful manner. The income, expenses, liabilities and assets must be represented as outlined by the IFRS framework. The second feature of International Financial Reporting is that it ensures the principle of going on concern. This implies that financial statements must treat a business as a going on concern unless the owners want to cease trading or liquidate the company. Other key features of International Financial Reporting include offsetting, frequency of reporting, accrual basis of accounting, materiality, consistency of presentation and comparative information. One of the major goals of International Financial Reporting Standards is to provide guidance for the preparation of financial statement instead of setting rules that an industry is supposed to follow while it is reporting its financial position. It is worth to note that by use of International Financial Reporting Standards especially by firms operating globally, it is possible to emulate a reporting language that can be easily understood by auditors and investors. With more than 100 countries requiring all the public companies to apply the IFRS, the accounting policies globally will greatly improve by 2015. International Accounting Standards Board (IASB) was formed in March 2001 in United States as a non profit firm. During the establishment of the organization, the purpose was