Melting Point Determination Identity and Purity of Solid Organic Compounds Objectives • To introduce the technique of melting point determination. • To use the concept of melting points for identification and characterization of organic compounds. • Properly fill and use a capillary melting point tube. • Determine accurate melting point ranges for a wide variety of organic substances. Introduction The melting point of a solid can easily and accurately be determined
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following. (3 points) a.COOH temp b.COH temp c.COH temp 2.List whether each of the following substances was positive or negative for reducing sugar‚ as indicated by the Benedict’s test. (6 points) a.corn syrup (1 point) b.table sugar (1 point) c.unknown 1 (1 point) d.unknown 2 (1 point) e.unknown 3 (1 point) f.unknown 4 (1 point) 3.List whether each of the following substances was positive or negative for starch‚ as indicated by using iodine. (7 points) a.onion juice (1 point) b.water
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“The Tipping Point: How Little Things Can Make a Big Difference.” By Malcolm Gladwell. Malcolm Gladwell‚ the author of The Tipping Point‚ explores the phenomenon known as the tipping point. According to Gladwell the tipping point is the moment at which "an idea‚ trend‚ or social behavior crosses a threshold‚ tips‚ and spreads like wildfire". In other words‚ the point when an idea‚ trend‚ or behavior becomes an sensation to the world. Gladwell researches the behaviors of fashion
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disagreements‚ there always was light at the end of the tunnel. However‚ eventually the colonies and Great Britain reached a standoff‚ a point of no return that forever created an icy‚ tense relationship between the two. A point of no return is crucial to any relationship because it is the point in time where no matter what‚ the past cannot be made up for. The mistakes
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molecule for each of the following. (3 points) 1. COOH -OH 2. COH -OH 3. COH -OH 1. List whether each of the following substances was positive or negative for reducing sugar‚ as indicated by the Benedict’s test. (6 points) 1. corn syrup (1 point) positive 2. table sugar (1 point) positive 3. unknown 1 (1 point) negative 4. unknown 2 (1 point) negative 5. unknown 3 (1 point) positive 6. unknown 4 (1 point) positive 1. List whether each of
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The Importance of Point of View “Robert and the Dog” Point of view in a story is something I find extremely interesting‚ simply because of the obvious fact that every single one of us have our own way of seeing things. Every one of us has a different point of view. For instance‚ when it is raining outside‚ my first thought would probably express some sort of happiness. The majority of people in Norway‚ would‚ on the other hand‚ probably complain. It’s all about perception. Analyzing literature
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As young men born in the same year (1955)‚ they set out from the same starting point‚ but with radically different personalities. In the early days of personal computers‚ both dropped out of college and launched their own businesses. Of the two‚ the late Steve Jobs was always the quick‚ live-for-the-moment hare‚ while Bill Gates was the dispassionate‚ lawyerly‚ bide-your-time tortoise. For two decades‚ the race between the two went according to script‚ with the hare jumping out to a huge early
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software and were very limited in function and communications capability. In August 1973 IBM announced the IBM 3650 and 3660 Store Systems that were‚ in essence‚ a mainframe 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‚ Local Area Network (LAN) simultaneous backup and remote initialization. By mid-1974‚ it was installed in Pathmark Stores in New Jersey
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Tipping Point Discussion Questions Introduction 1) What was the point Gladwell makes with the Hush Puppy story? Hush Puppy is a kind of classic American shoes which were considered to be old fashioned in 1994. However‚ because no one would wear Hush Puppy in that age‚ this kind of shoes became so unique and catch some fashion designer’s attention‚ and then Hush Puppy became popular again. Hush Puppy story is an example of epidemics in action‚ through this story‚ Gladwell demonstrated
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The Tipping Point is the “biography of an idea‚” that a good way to think of “any number of [any] mysterious changes that mark everyday life is to think of them as epidemics. Ideas and products and messages and behaviors spread just like viruses do.” (7) There are three basic characteristics of change — “one‚ contagiousness; two‚ the fact that little causes can have big effects; and three‚ that change happens not gradually but at one dramatic moment…” (9) “The name given to that one dramatic moment
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