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. Notes of key points From watching the Frontline video of the merchants of cool‚ I found that there are a few key points which raise my awareness to teenagers. Firstly‚ the teenager population were becoming larger and larger. There were 32 million teenagers in North America in 2001. The team population even beat their baby boomer parents’ population. 150 billion dollars could be spent by those teenagers. They have gotten more money from their parents. They become rich and could spend more on
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Five key points to Strong Leadership (thus a Great Manager) 1. Develop trust and credibility (trustworthiness‚ dependability). When people trust you‚ they will be more inclined (willing) to follow you. If they follow you‚ and you have all the pieces of the puzzle in place as described throughout this course‚ you will succeed. A leader builds trust by considering the “good of all” when making decisions. Leaders do not abuse their power‚ but build trust by using it properly. Trust fosters (encourage
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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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following table‚ design an enterprise encryption strategy-a public key infrastructure (PKI) that supports internal employees‚ external business partners‚ and clients. Include the design and reasoning for using the selected encryption strategy. Have a secure network takes a lot of work and has to be monitored 24 hours a day 7 days a week. There are many different ways to go about this topic the one I am going to pick is a public key infrastructure (PKI). One security options that can be used is
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Animal Farm by George Orwell is an allegory that represent the Russian Revolution. The key point in Animal Farm‚ language is a powerful tool that can be used in a positive or negative way‚ and can work to one’s advantage or result in serious consequences. The pigs make others work extremely hard‚ while they sit back and rest. For example‚ “Now comrades...to the hayfield! Let us make it a point of honour to get in the harvest more quickly than Jones and his men could do.” (Orwell‚ 24) Later in the
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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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Key Points of Tony Blair’s Premiership Blair was born in Edinburgh and studied law at Oxford University to become a barrister. He joined the labour party in 1975 and successfully gained a seat in Sedgefield in 1983. Tony Blair was considered as new age Labour’s golden boy and beat John Major in the elections. He won a landslide majority in 1997 by gaining 63.6% of the seats in the House of Commons. He was the youngest Prime Minister since 1812 and had three consecutive terms in office‚ making
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Cell structure and organization • Chloroplasts o Site of photosynthesis where light energy is absorbed o Consist of grana which are stacked up to increase surface area for absorption of light o Only present in plant cells • Cell membrane (plasma membrane) o Lipid bilayer that surrounds the cell‚ interspersed with protein molecule o Presence of temporary pores o Selectively permeable Controls movement of substances o Diffusion‚ osmosis and active transport can therefore take place o Prevent outflowing
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