I. DATA AND OBSERVATIONS Table 1. Description of reagents. Reagents Description Salicylic acid Fine powdery white solid crystals 95% ethanol Clear colorless liquid Acetyl chloride Clear colorless liquid with gas escaping from container FeCl3 Clear colorless liquid Commercial aspirin Fine powdery white solid crystals I2/KI Deep black liquid KMnO4 Brownish liquid Phosphoric acid Clear colorless liquid Table 2. Preparation of Aspirin. Description Salicylic acid + Acetyl
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It should be noted that direct comparision between these immigrants and the native population is impossible‚ mostly due to the different socio-political factors surrounding each population. That is why the study compared different demographics between immigrants and refugees from the same origin. There were five areas of origin for the majority of these refugees: Afghanistan‚ Iraq‚ Iran‚ the Middle East‚ Somalia‚ and former Yugoslavia. Another factor to keep in mind are the inherent biases that
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The numbers are striking. Nearly a third of global food production is wasted‚ according to the UN organization for Food and Agriculture (FAO). About 1.3 billion tons of food are wasted each year as well. To give an order of magnitude‚ FAO researchers agree that this wasted amount is sufficient to feed 805 million people suffering hunger in the world. How can we educate students and the general public about this environmental scourge? Indeed‚ interventions can be done towards students. These may
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I. REFERENCE: Torrington Eaton‚ C.‚ & Bernstein Ratner‚ N. (2013). Rate and Phonological Variation in Preschool Children: Effects of Modeling and Directed Influence. Journal Of Speech‚ Language & Hearing Research‚ 56(6)‚ 1751. doi: 10.1092-4388(2013/12-0171) II. PURPOSE: This article investigated whether preschool children could adjust their speech rate and articulation clarity based on modeling and explicit instruction by an adult. Two specific hypothesis were investigated in this study: 1) “Do
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Wearing makeup is a very common thing. It has been around for centuries and only gets more popular as the years go on. Studies show that there are certain makeup products that can be a great harm to you and to your body. On the first document‚ “Dirty Dozen” it gives a lot of information on this very serious matter. It states that the dangerous chemicals that can be found in many of the beauty products that woman use nowadays are “BHA and BHT‚ Coal tar dyes…‚ DEA-related ingredients‚ Dibutyl phthalate
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Lab E: Adapted from Experiment #10 TA: Sudipta Biswas Tuesday‚ 1:05pm 10/25/11 Sarah Kempkes Abigail Scherer Abstract: The purpose of this experiment was to create and obtain pure acetaminophen. p-aminophenol and acetic anhydride were used to create acetaminophen and acetic acid. The acetic acid mixed with acetaminophen created an impure sample‚ which was purified through the addition of a water/methanol solution. The percent recovery of acetaminophen from the impure sample to the pure
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Film is a different medium through which to convey historical experiences of war and its social and cultural contexts. As learned throughout class‚ memoirs and non-fiction portrayals of war are excellent sources in which to learn of war and its effects on society and vice versa. Film‚ however‚ is no better or worse than these books. Throughout the semester‚ the class learned of the development of modern warfare since the Civil War in the late nineteenth century and the society that surrounded these
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Have you ever wondered why your voice matures when you get older? Well that’s because your vocal cords grow longer making you voice deeper. A male’s voice gets way deeper than a female’s voice though. A male’s larynx grows bigger during puberty making the voice deeper. For some people‚ if you sing‚ that means that your vocal range can increase easily. But if you don’t sing‚ it isn’t necessary for your vocal range to increase. As you grow older‚ your larynx hardens making your voice seem a little
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Abstract Oxidation was found for primary alcohol. When 6 drops of potassium dichromate and 1 drop of concentrated sulfuric acid were added to 1-pentanol‚ the color of 1-pentaol turned into dark green. In second experiment‚ precipitation was found when 6 drops of 2‚4-dinitrophenylhydrazine were added to both 5 drops of benzaldehyde and 5 drops of acetophenone. Based on these data‚ it is possible to find alcohol by oxidation and aldehyde by observing precipitation Introduction This experiments
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Jazz has been called‚ among other things‚ America’s "only original form‚" showing it’s clear cultural roots in America. In addition‚ jazz historians have touted jazz’s pedigree as "American’s Classical Music." An appreciation and analysis of jazz history forces one to question both the "American" and "Classical" descriptors that past historians have used to label jazz music. Using primarily sources such as "From Somewhere in France" by Charles Delaunay and "An Interview with Wynton Marsalis" by Lolis
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