CERTIFICATE ACKNOWLEDGEMENTS "There are times when silence speaks so much more loudly than words of praise to only as good as belittle a person‚ whose words do not express‚ but only put a veneer over true feelings‚ which are of gratitude at this point of time." I would like to express my sincere gratitude to my chemistry teachers Mrs. Meenakshi‚ Mrs. Sonali and Mrs. Shampa for their vital support‚ guidance and encouragement - without which this project would not have come forth. I would
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similarities and differences in the structures of the three dyes? a. Red No. 40‚ Blue No. 1‚ Yellow No. 5 contain carbon rings and NaSO3. Additionally‚ Red No. 40 and Yellow No. 5 are very similar‚ as they both contain one nitrogen double bond‚ a hydroxyl group‚ and no ions. Blue No.1 contains nitrogen and chlorine ions and N(C2H5)CH2. 2. In the Introductory Activity‚ the developing solvents were 2% sodium chloride aqueous solution and 2% isopropyl alcohol aqueous solution. Draw separate molecular
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much shorter chain of nucleotides. However‚ RNA can‚ by complementary base pairing‚ form intrastrand double helixes‚ as in tRNA. While DNA contains deoxyribose‚ RNA contains ribose (in deoxyribose there is no hydroxyl group attached to the pentose ring in the 2’ position). These hydroxyl groups make RNA less stable than DNA because it is more prone to hydrolysis. The complementary base to adenine is not thymine‚ as it is in DNA‚ but rather uracil‚ which is an unmethylated form of thymine.[1] Like
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INTRODUCTION Cell phones have revolutionized the wireless telecommunications industry over the past decade. It has made telecommunication faster‚ convenient and more economical. The advancement in mobile phone technology with multi-functional features has attracted more cell phone users‚ both young and old‚ throughout the world. Gadgets like tablets‚ smartphones‚ etc. are multiplying at a rate five times faster than global human population. The US Census Bureau puts the global human population between
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Activity 1.7.2 Synthesis of Esters Purpose- the Purpose of this lab is to synthesize Esters by combining Carboxylic Acid and Alcohols. In this lab we will synthesize and then detect the odour of Esters formed. Materials- Materials that will be used in this lab are as follows:- Ethanol 7. Acetic Acid Eye Protection 11. Test tube rack Procedure- Prepare a hot-water by half filling a 500-mL beaker with water and heating it carefully on a hot plate until it comes to a gentle
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originating website.) | The first issue is the process by which two sugars can be chemically joined. | The answer is found in the fact that these sugars are literally covered with hydroxyl (-OH) groups. As shown in Figure 3 on the right‚ a hydroxyl group on one sugar (-OH) can be connected to another hydroxyl group (HO) on a second sugar by removing an -OH from the first sugar and a H- from the second leaving a -O- bond connecting the two sugars in a disaccharide. In addition‚ the released
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Comparison of Three Isomers of Butanol Introduction An alcohol’s reactivity is determined based on the attachment of their hydroxyl functional group. The location of this hydroxyl functional group will impact the molecular structure of the alcohol‚ making it either primary (1° )‚ secondary (2° )‚ or tertiary (3° ). The purpose of this experiment is to observe and predict the reactions that take place between all three alcohols and an oxidizing agent‚ as well as to test our theories of how the
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carbon dioxide (Simon‚ Reece‚ Dickey 2010‚ p.103). The compounds of alcohols are structurally similar to carbohydrates‚ consist one or more hydroxyl (OH) group. Ethanol is the
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BIOCHEMICAL IMPORTANCE OF WATER Of all the simple chemicals that are found in abundance on Earth‚ only water is liquid under normal pressure and temperature. When life first appeared on planet Earth‚ water has played an important role in creating the first organic compounds. The organic compounds later‚ formed the first prokaryotic organisms. Life began‚ as the modern theories support‚ in water and developed for three billion years in it before spreading on land. It is no coincidence that the
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Definitions Alpha glucose- is an isomer. The hydroxyl group is attached facing down and away from the main structure. Beta glucose- is an isomer except the hydroxyl group is attached above the ring and on the first carbon. Fructose- a sugar of the hexose class‚ and is a simple ketonic monosaccharide found in many plants‚ where it is often bonded to glucose to form the disaccharide sucrose. Sucrose- Sucrose is a sugar‚ the organic compound commonly known as table sugar‚ cane sugar‚ beet sugar or
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