Accuracy Definition in Chemistry

Accuracy refers to the correctness of a single measurement. Accuracy is determined by comparing the measurement against the true or accepted value. An accurate measurement is close to the true value, like hitting the center of a bullseye. Contrast this with precision, which reflects how well a series of measurements agree with each other, whether or not any of them are close to the true value. Precision can often be adjusted using calibration to yield values that are both accurate and precise. Scientists often report percent error of a measurement, which expresses how far a measured value is from the true value. Examples of Accuracy in Measurements For example, if you measure a cube that is known to be 10.0 cm across and your values are 9.0 cm, 8.8 cm, and 11.2 cm, these values are more accurate than if you had gotten values of 11.5 cm, 11.6 cm, and 11.6 cm (which are more precise). Different types of glassware used in the lab are inherently different in their level of accuracy. If you use an unmarked flask to try to obtain 1 liter of liquid, youre likely not going to be very accurate. If you use a 1-liter beaker, youll probably be accurate within several milliliters. If you use a volumetric flask, the accuracy of the measurement may be within a milliliter or two. Accurate measuring tools, such as a volumetric flask, are usually labeled so a scientist knows what level of accuracy to expect from the measurement. For another example, consider mass measurement. If you measure mass on a Mettler scale, you can expect accuracy within a fraction of a gram (depending on how well the scale is calibrated). If you use a home scale to measure mass, you usually need to tare the scale (zero it) to calibrate it and even then will only get an inaccurate mass measurement. For a scale used to measure weight, for example, the value could be off by half a pound or more, plus the accuracy of the scale may change depending on where you are in the instruments range. A person weighing close to 125 lbs might get a more accurate measurement than a baby weighing 12 lbs. In other cases, accuracy reflects how close a value is to a standard. A standard is an accepted value. A chemist might prepare a standard solution to use as a reference. There are also standards for units of measurement, such as the meter, liter, and kilogram. The atomic clock is a type of standard used to determine accuracy of time measurements.

Examine the Economic Arguments Used to Explain the...

Examine the economic arguments used to explain the partition of West Africa. In the late 1880s, only limited areas of Africa were subjected to the direct rule of Europeans. However, the next 20 years saw an increase in the confiscation of African colonies by the Europeans and by 1914 the partition of Africa had been consolidated. By 1914, with the exception of Ethiopia and Liberia, the whole of Africa had been partitioned and occupied by the imperial powers of France, Britain, Germany, Portugal, Belgium, Spain and Italy, and colonialism was implemented. However, by 1918 Germany lost its African colonies and they were distributed among the other European powers. Lenin and Hobson both argue that the partition of west Africa was†¦show more content†¦In 1884 Bismarck dispatched warships to declare German sovereignty over the coasts of German Togoland, Cameron, South Wets Africa and Tanganyika. These were the areas of British influence where their missionaries and traders worked. This strategy was designed to make the French feel that Germany w as on their side in Africa. Furthermore, King Leopold created an International Association, this was supposed to promote scientific knowledge of Africa but it was actually designed to carry out his secret territorial ambitions in the Congo (Boahen Webster, 169). Additionally, the British occupation of Egypt was vital in starring the scramble elsewhere on the African continent. Prior to British occupation of Egypt, there were many signs in West Africa that a new imperial advance could be expected. This was demonstrated by the British defeat of the Asante in 1874, renewed French activity on the Senegal in the late 1870s, British and French maneuvering on the Niger and French and Belgian activity on the Congo. The rivalry on the Niger-Congo impelled the Berlin Conference (Boahen Webster, 170). In 1884, the European powers convened at the Berlin West Africa Conference when it became apparent that the carving up of Africa was to begin. The Berlin Conference determined that the Nig er and Congo would be open to the trade of all nations alongShow MoreRelatedWater as a Source of Future Conflict in Sa26984 Words   |  108 Pagesresources, management inefficiencies and development concerns. The infrastructure development and the efforts given, is considered inevitable in the region for the hydropower generation. 3. Although water has been considered as an indispensable means of economic development and social welfare, greater need of water resources are the main issues of contention. With the increase in uses of water resources, inter and intra state contest between various countries has surfaced. The South Asian rivers has alternativeRead MoreOne Significant Change That Has Occurred in the World Between 1900 and 2005. Explain the Impact This Change Has Made on Our Lives and Why It Is an Important Change.163893 Words   |  656 Pages978-1-4399-0271-4 (electronic) 1. History, Modern—20th century. 2. Twentieth century. 3. Social history—20th century. 4. World politics—20th century. I. Adas, Michael, 1943– II. American Historical Association. D421.E77 2010 909.82—dc22 2009052961 The paper used in this publication meets the requirements of the American National Standard for Information Sciences—Permanence of Paper for Printed Library Materials, ANSI Z39.48-1992 Printed in the United States of America 2 4 6 8 9 7 5 3 1 C ONTENTS Read MoreInternational Management67196 Words   |  269 PagesThe global financial crisis and economic recession have challenged some assumptions about globalization and economic integration, but they have also underscored the interconnected nature of global economies. Most countries and regions around the world are inextricably linked, yet profound differences in institutional and cultural environments persist. The challenges for international management reflect this dynamism and the increasing unpredictability of global economic and political events. ContinuedRead MoreAll the Mathematics You Missed but Need to Know for Graduate School17996 Words   |  72 Pagesother quantitative subjects are expected to have a daunting breadth of mathematical knowledge, but few have such a background. This book will help students see the broad outline of mathematics and to fill in the gaps in their knowledge. The author explains the basic points and a few key results of the most important under graduate topics in mathematics, emphasizing the intuitions behind the subject. The topics include linear algebra, vector calculus, differential geometry, real analysis, point-set topologyRead MoreMetz Film Language a Semiotics of the Cinema PDF100902 Words   |  316 PagesPhilosophy. I. Title. PN1995.M4513 1991 791.43 014—dc20 90-46965 C1P The French edition of Christian Metz s Essais sur la signification au cinema, volume 1, was published by Editions Klincksieck in 1971,  © Editions Klincksieck, 1968. ÃŽËœThe paper used in this publication meets the minimum requirements of the American National Standard for Information Sciences-Permanence of Paper for Printed Library Materials, ANSI Z39.48-1992. To George Blin, Profesor at the Collà ¨ge de France, whithout whom noneRead More_x000C_Introduction to Statistics and Data Analysis355457 Words   |  1422 PagesPrinter: Courier Corporation/Kendallville  © 2008, 2005 Duxbury, an imprint of Thomson Brooks/Cole, a part of The Thomson Corporation. Thomson, the Star logo, and Brooks/Cole are trademarks used herein under license. ALL RIGHTS RESERVED. No part of this work covered by the copyright hereon may be reproduced or used in any form or by any means—graphic, electronic, or mechanical, including photocopying, recording, taping, Web distribution, information storage and retrieval systems, or in any other manner—without

The Beautiful Letdown free essay sample

For as long as I can remember, I have beeninfatuated with all types of rock music. Over the years I have purchased manyrock albums, some decent and some disappointing, in a quest for the ideal.Occasionally I would come across an album so appealing that I would convincemyself I had found the ideal album. But then I would grow tired of it, andrealize its insufficiency. Id end up, once again, disillusioned. As timepassed I became increasingly fastidious in my purchases; I even succumbed to thenotion that rock is dead as the deep meanings and messages in those powerfulsounds and identifiable lyrics were gradually replaced by repetitious hip-hop andmeaningless pop music. I was close to denying the existence of theperfect rock album, but then, when I least expected it, I witnessed theinexpressible sublimity of Switchfoots The Beautiful Letdown. Icouldnt believe my ears the producing, songwriting, playing, singing and soundwere perfect. We will write a custom essay sample on The Beautiful Letdown or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page I had finally found the ideal rock album and was utterlyhappy and satisfied every time I listened to this superlative collection of 11songs. Perhaps the most extraordinary track is This is Your Life. Theintro is very distinct and makes an intriguing transition from the previous song.It begins with decelerated base sounds separated by pausing intervals thatgradually lead into a shrill synthesizer, immediately followed by the soft strumsof a 12-string acoustic guitar played by Jon Foreman. After Foreman singsprofound lyrics about the inevitability of the unchangeable past, he utters thewords, This is your life Are you who you want to be? At thispoint, the listener is either weeping or completely dumfounded at the songsomnipotence I think I passed out the first time I heard it. Anotherawesome song is the title track. The message here is so undeniably true that itpractically demands the listeners undivided attention. Foreman addresses achallenging truth about the distinct time when each is faced with the decision toaccept Christ as Savior and convert. Foreman calls this conversion thebeautiful letdown because what once seemed beautiful is always a letdown when youfind truth in God. The Beautiful Letdown is only one of many thatfocuses on spiritual longing, and is perhaps the reason why this is the idealrock album. Every song is incomparably impressive, I guarantee it.Through this album, Switchfoot has impacted my life. And if you have not yetwitnessed this, I hope and pray The Beautiful Letdown will becomeyour ideal rock album.

The business ethics education influence practitioner - Free Samples

Question: Discuss about The businessethics education influence practitioner. Answer: Evaluation of Ethical learning at Commonwealth Bank Previously, Commonwealth Bank in Australia was facing certain issues and it resulted in controversies as well, because of which, the company focused on the development of an ethical culture and promote ethical learning. By becoming an ethical organisation, it would become easy for the company to follow the rules and regulations implemented by the top-level management. By promoting ethical learning, it would also become convenient for the financial institution to work according to the main value statement by aligning with the business goals and objectives (Maden 2012). Ethical learning is also possible by respecting the work of every one and even considering their opinions and responses for creating good relationships between both the employer and employee. Implementation of ethical learning Due to the immense competition in the market, Commonwealth Bank has changed certain policies and procedures to maintain ethics and a positive culture for successful business functioning. For implementing the ethical learning, Commonwealth Bank has maintained honesty, transparency and managed both human and financial resources properly to promote openness and exchange of information and data with ease and effectiveness (Commbank.com.au. 2018). The organisation has introduced a new program for refunding the retail customers in case any errors or issues were caused by the bank itself. Proper leadership is managed and decisions are taken by the top management, which are accurate and have brought positive outcomes for the organisation (Karkoulian, Canaan Messarra and McCarthy 2013). The core value statement of the organisation is followed by remaining aligned with the mission and objectives for understanding the ways of working appropriately. Commonwealth Bank must abide by the laws, rule s and regulations of the state, national and federal levels to ensure proper communication, sharing and exchange of information among the employees too. To enable ethical learning, the company must develop a sense of trust and loyalty among the customers and make them believe that their career is safe and sound (Pardo and Siemens 2014). Corporate social responsibility The corporate social responsibilities could be achieved with ease, because the company had create positive impacts by managing education, community and business practices properly. Commonwealth Bank should be able to develop sustainable value by focusing on the various areas aligned with the seven opportunity initiatives. Educational opportunities are provided for making people obtain skills and knowledge and create a diversified workforce capable of performing to their potential. Corporate social responsibilities are also managed by focusing on a balanced and transparent business decisions for supporting the social, economic and environmental factors too (Balotsky 2012). Conclusion The topic focused on the ethical learning aspect of Commonwealth Bank, Australia by evaluating how the ethical learning was managed. To achieve ethical learning, it should be necessary to prepare training sessions for enhancing the skills of the workers and create a workforce that could be capable of maintaining openness and transparency. The leadership was maintained properly along with the promoting of transparency and openness, which furthermore provided enough educational scopes and opportunities and facilitated the decision making process. These could be the ways by which Commonwealth Bank could become an ethical learning organisation within the banking sector in Australia. References Balotsky, E.R., 2012. Just how much does business ethics education influence practitioner attitudes? An empirical investigation of a multi-level ethical learning model.Journal of Business Ethics Education,9, pp.101-128. Commbank.com.au. (2018). Personal banking including accounts, credit cards and home loans - CommBank. [online] Available at: https://www.commbank.com.au [Accessed 25 Jan. 2018]. Karkoulian, S., Canaan Messarra, L. and McCarthy, R., 2013. The intriguing art of knowledge management and its relation to learning organizations.Journal of Knowledge Management,17(4), pp.511-526. Maden, C., 2012. Transforming public organizations into learning organizations: a conceptual model.Public Organization Review,12(1), pp.71-84. Pardo, A. and Siemens, G., 2014. Ethical and privacy principles for learning analytics.British Journal of Educational Technology,45(3), pp.438-450.