spots were present for a compound‚ give Rf value for each component and state if the component was major or minor. | 100% hexane | 25% EtOAc in hexane | 10% EtOAc in hexane | Fluorene | 0.34 cm | 0.94 cm | 0.67 cm | 9 - fluorenol | 0.00 cm | 0.49 cm | 0.05 cm | 9 - fluorenone | 0.00 cm | 0.69 cm | 0.21 cm | 2. Explain how Rf values were generally affected by polarity of the solvent/eluent systems. As part of your answer‚ rank the solvent/eluent systems in order of decreasing polarity
Premium Chromatography Gas chromatography Solvent
Mead Professor McCormick Sociology 2 December 2012 District 9 Though this may seem like any other stereotypical extra-terrestrial movie‚ District 9 is unique in that it creates a scenario showing human discrimination towards alien begins; something that is an obvious metaphor for all racial discrimination. District 9 shows a world where the battle for previously eliminated racial equality resurfaces. It is no coincidence that District 9 is set in South Africa‚ where apartheid‚ discrimination mainly
Premium District 9 Racism Race
District 9 is more evolved as a science fiction film than Avatar if one analyses the following themes portrayed in the films: The Alien as the “other”‚ Genetic transformation and Dystopia through the use of camera angles and shots‚ colours and music. District 9’s prawns are seen as disgusting creatures that have no recognizable hierarchy‚ no drive and no understanding of their situation. They are just animals that have the misfortune of landing in Johannesburg. The main prawn in District 9 is Christopher
Premium District 9 Johannesburg English-language films
Cambridge IELTS 9 Ðây là phiên bản html của tệp ftp://ftp.cup.cam.ac.uk/pub/elt/outgoing/Cambridge%20IELTS%209_2nd%20proofs/9781107615502p001-176.pdf. G o o g l e tự động tạo ra những phiên bản html của các tài liệu khi chúng tôi crawl web. Những cụm từ tìm kiếm này đã được tô sáng: cambridge ielts 9 Page 1 Cambridge IELTS 9 Authentic examination papers from Cambridge ESOL file:///C:/Users/kohaku/Desktop/Cambridge IELTS 9.htm 1/120 10/14/12 Cambridge IELTS 9 9 8 1 7 1 5 2 0
Premium
Assignment Instructions Unit: 9 Instructions: This week’s assignment consists of watching a scenario about Sandwich Blitz‚ Inc. and answering questions regarding the use of new technology as a means of improving communication between employees and customers. Sandwich Blitz‚ Inc. has a great problem...an increase in the number of customers! Employees have been consistently reporting that they are overwhelmed by the volume of customers and management has noticed that the number of reported
Premium Typography Management Microsoft Word
What do you like most about your study? 3. What kind of job do you prefer after graduation? 4. What is your major? 5. What do you do for living? 6. Could you tell me a typical day of yours? 7. How do you get your job? 8. Are you satisfied with your job? 9. What do you like most about your job? 10. What kind of job do you prefer in the future? Hobby or inclination 1. What do you usually do in your spare time? 2. Do you prefer to stay alone or with your friends? 3. What do you usually do on weekends and weekdays
Premium Ethernet
9 Beatitudes 1. Blessed are the poor in spirit‚ for theirs is the kingdom of heaven. With this phrase‚ "poor in spirit‚" most likely Jesus was speaking of our spiritual condition of poverty‚ the recognition of our need for God. "The kingdom of heaven" refers to people who acknowledge God as their King. 2. Blessed are those who mourn‚ for they shall be comforted. “Those who mourn" speaks of those who express deep sorrow over sin‚ or those who repent from their sins. The freedom found in the forgiveness
Premium Christian terms Jesus Christianity
Zach Betten The Impact of 9-11 On September 11‚ 2001 America woke up expecting a normal day. What America did not expect was that this day was going to change history forever. On that day Islamic extremist high-jacked four U.S. airplanes with the intent of crashing them into the twin towers‚ the Pentagon and the White House. Two of the planes did indeed crash into the twin towers in New York City and another was used to hit the pentagon. The passengers on the last plane however‚ fought back‚ and
Premium Federal Bureau of Investigation September 11 attacks
Fundamentals of Multinational Finance‚ 5e (Moffett et al.) Chapter 9 Transaction Exposure Multiple Choice and True/False Questions 9.1 Types of Foreign Exchange Exposure 1) ________ exposure deals with cash flows that result from existing contractual obligations. A) Operating B) Transaction C) Translation D) Economic Answer: B Diff: 1 Topic: 9.1 Types of Foreign Exchange Exposure Skill: Recognition 5) ________ exposure is the potential for accounting-derived changes in owner ’s equity
Premium Currency Foreign exchange market United States dollar
outcome are countable 8. The mean life of pair of shoes is 40 months with a standard deviation of 8 months. If the life of the shoes is normally distributed‚ how many pairs of shoes out of one million will need replacement before 36 months? 308‚500 9. If the sampled population has a mean of 48 and standard deviation 16‚ then the mean and the standard deviation for the sampling distribution x for n=16 48 and 4 10. The MPG (MILES PER GALLON) for a mid-size car is normally distributed with a mean of
Premium Normal distribution Standard deviation