Recovery Data. Recrystallized Aspirin Wt. of watchglass + filter paper 53.081g Wt. of watchglass + filter paper + product 55.995 Weight of product 2.914 Theoretical Yield 2.61g % Yield 111.65% Table 5. Melting point determination. Crude Aspirin Recrystallized Aspirin Melting point 118-130°C 134-136°C Literature value 135°C 135°C Table 6. Differentiation of starting materials. Substance Sol’y in water +/- Fecl3 test +/- KMnO4 +/- Acetic Chloride Dissolved acetyl chloride. Clear
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Question 1 Consider the company’s operations during the years from 1975 to 1979‚ and answer the following questions: a. How has the above complex approach actually worked‚ over these four years? What was the outlook (as of the case date) for further progress in this matter? In 1975 Chaparral Steel commissioned minimill and started production. Minimills are different from traditional integrated steel plants. In minimill an Electric Arc Furnace (EAF) is used for steel making purpose and in downstream
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Decadent-looking and easy to hold‚ chocolate-covered strawberries make a good dessert or a snack for a sophisticated gathering. After working hard to wash‚ dry and decorate your berries‚ take the extra step of arranging them decoratively before serving them. Stacking them on top of one another will smear the chocolate and make them look less appealing. Platters of prettily arranged berries will please the eye and the taste buds.Read more: How to Arrange Chocolate Covered Strawberries | eHow.com http://www
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and they are easy and fun to make. Tie to audience: Crayon canvas art‚ can be done pretty much by anyone. They are simple to make and can give you a piece of art to hang on your wall that you created. Thesis Statement: There are 5 steps in melting crayons on a canvas. The First step is Gathering your supplies‚ Second step glue crayons onto the top of your canvas in the order you want‚ Third step place your canvas against a wall or hold it up‚ Forth step take your hair-dryer or lighter and apply
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Windows 7 as an wi-fi access point » IT Geek Diary Page 1 of 3 Home About IT Geek Diary Best Practice from IT Geeks 20 Nov 09 Windows 7 as an wi-fi access point Now with Windows 7 you can share your internet connection as an access point with the the drivers that came with Windows 7‚ Windows also installs the Microsoft Virtual WiFi Miniport Adapter To configure it use the Command Prompt in Administrator elevated: netsh wlan set hostednetwork mode=allow ssid=itgeekdiary key=typepassword
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in the summer‚ Cedar Point has a positive impact on the economy of Erie County Ohio. Thru tourism‚ expansion and charitable works they have improved the economy of the area a thousand times over. Each year Cedar Point draws millions of tourists to the area. Those tourists stay in hotels‚ eat at restaurants and buy souvenirs. “Tourists spent more than $1.75 billion in the county in 2005‚ making it one of the most popular tourist destinations in the Midwest.” (Cedar Point Infuses Ohio Town with
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Making own sweets is so much fun‚ and looks impressive for very little effort. There’s no baking involved in this recipe just a little chopping‚ rolling and melting and the process is pretty therapeutic. Once got the hang of it so can experiment a little too try coating or drizzling them with dark chocolate. The quantities provided below should make about thirty chocolates‚ taking into consideration the fact that a fair amount of mixture may disappear as make them up. Ingredients: 120g Hazelnuts
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Analysis The melting temperature of sodium thiosulfate can be determined by checking our data. Since a substances temperature remains constant while it undergoes a phase change‚ we can see that our sample changed from a sold to a liquid at 46.0°C. This is the temperature of the sample between time periods t1= 130s and t2= 480s. In order to find the Heat of Fusion (∆H Fusion) of sodium thiosulfate we used to calculate how much energy the water bath lost during the sample’s melting period. That
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temperature be raised when determining a melting point? When can the temperature be raised more quickly? 2) If there is an Impurity present in a sample‚ what is the effect on the melting point? 3) Explain why a) salt‚ spread on roads in the winter‚ helps prevent icing in‚ for instance‚ southern Ontario‚ and b) salt is useless on the much colder roads of Manitoba. 1) You would have to slowly raise the temperature up when determining the melting point due to the sensitivity of the dulcin being
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the following items. You will need bread‚ you can use any type of bread you want as long as it is sliced‚ because it will need to lay flat in a skillet. Next you will need cheese‚ there are so many different kinds‚ all having different flavors and melting qualities‚ and you can even combine different types for unique flavors. Other items you will need are a stove‚ skillet with lid‚ spatula‚ and cooking oil or butter. Once you have everything‚ the next thing you will do is place your skillet
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