Lab Name: Molar Mass by Freezing Point Depression Researcher: Isabella Cuenco Lab Start Date: November 9‚ 2012 Lab Completion Date: November 9‚ 2012 Table of Contents SECTION NAME I. Introduction II. Procedure III. Data IV. Analysis V. Conclusion PAGE NUMBER I. INTRODUCTION Purpose: The purpose of the lab is to find the molar mass of an unknown substance by measuring the freezing point depression of a solution of the unknown
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Nick Boyea Billy Lee 3/9/11 Molar Mass by Freezing Point Depression Overview The purpose of this lab is to measure the freezing point depression of a solution of an unknown substance and BHT to determine the molar mass of the unknown substance. Summary of Lab Procedure If not already completed‚ crush a small amount of BHT and pack it into a capillary tube. Use a small rubber band to clamp the capillary tube to the thermometer‚ and fasten the thermometer to a ring stand. Fill a Thiele tube
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(1) Evaporation: Surface Area: Evaporation is surface phenomenon.Greater is surface area greater is evaporation and vice versa.For example‚ sometimes a saucer is used if tea is to be cooled‚ quickly.This is because evaporation from the larger surface area of saucer is more than that of the smaller surface area of the tea cup. Temperature: At high temperature‚ rate of evaporation is high because at high temperature
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Wilson’s Fourteen Points vs. Treaty of Versailles World War One was a tragedy that affect not one but many countries. It brought destruction‚ starvation‚ enemies‚ and death not only of soldiers but of normal civilians. There were two proposals created to end World War One: Wilson’s Fourteen Points and the Treaty of Versailles. They were both created to bring peace between the countries. However‚ they both had their positives and negative effects. Wilson’s Fourteen Points would have more independent
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computer packaged as a store controller that could control 128 IBM 3653/3663 Point of Sale Registers. This system was the first commercial use of client-server technology‚ peer to peer communications‚ and Local Area Network (LAN) simultaneous backup and remote initialization. Other computer-based manufacturers were Regitel‚ TRW‚ and Datachecker. 1973 also brought the introduction of the UPC barcode readers to the point of sale systems. By mid-1974‚ IBM 3653 Store System was installed in Pathmark
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2011 19th IEEE International Conference on Network Protocols Internet Exchange Points and Internet Routing Mohammad Zubair Ahmad and Ratan Guha Department of Electrical Engineering and Computer Science‚ University of Central Florida‚ Orlando‚ Florida Email: {zubair‚guha}@eecs.ucf.edu I. I NTRODUCTION The Internet is a network of Autonomous Systems (ASes) comprising of a complex and complicated ecosystem of networks used for a wide variety of applications. ASes exhibit varied functionality
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NEW MORNING FOR MOUNTAIN DEW Mountain Dew was launched in 1969. PepsiCo initially marketed Mountain Dew with the countrified tag line “Yahoo Mountain Dew! It will tickle your innards”. Since then‚ the drink has outgrown its provincial roots. After an unsuccessful attempt in the early 1980s to bring urban teenage drinkers to the brand by advertising on MTV‚ the company switched its focus to using outdoor action scenes in its ads. In the late 1980s‚ Mountain Dew posted double-digit annual
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I decided to try to quit drinking Mountain Dew for my personal addiction project. This turned out to be a lot easier to say than it was to actually do. I drink Mountain Dew all the time; I drink it because it tastes good and because it has a high caffeine content. The high caffeine content helps me to get through the day when I have to get up early for work and then stay up late either doing homework or going to class. Therefore‚ giving up Mountain Dew is going to be a much more difficult challenge
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nothing was found‚ and the doctor was interviewed by police Chief Inspector Walter Dew. After the interview (and a quick search of the house) Dew was satisfied and had no doubts regarding the truth of his story. However Crippen and le Neve did
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This paper is a full determination for certain chemicals and their boiling points. It lists some already but given the atomic numbers of any material this project includes a conversion and calculation chart to find the freezing point of most any material. GOOD LUCK! Abstract: In this lab we determined the freezing point‚ and Kf‚ of pure 2‚4‚dichloralbenzne as well as a 2‚4‚dichloralbenzne/biphenyl solution. We used this information to determine the molar mass of an unknown (#24) by the 3rd step
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