"Seperation of carboxylic acid phenol and neutral compound" Essays and Research Papers

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    1.05 amino acids

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    The charts below lists a portion of the amino acids found in the Cytochrome C protein of  several different organisms. Use the chart to compare the amino acid sequence in humans  to the sequences of the other organisms listed. For each organism‚ identify any amino acid  that is different or missing when compared to the amino acids in the human sequence.  1. 2. 3. 4. 5. 6. 7. 8. Click on the following link to open the activity chart:   Amino Acid Sequences in Cytochome­C Proteins.    

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    Title: Estimation of Ascorbic acid Aim: To determine the ascorbic acid content of canned apple and orange juice To determine the volume of canned juice necessary to provide 75mg of Vitamin C Introduction: For the estimation of ascorbic acid‚ the method used involved the titration of the ascorbic acid‚ in the presence of a redox indicator 2‚6-dichlorophenol-indophenol (DCPIP) which acts as both an oxidant so as to oxidise the ascorbic acid to dehydroascorbic acid‚ and it acts as an indicator

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    Lewis Acids and Bases

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    Lewis Acids and BasesLewis acids and bases play an important role in chemical reactions because‚ except oxidation-reduction reactions‚ almost every reaction could be categorized as an acid-base reaction. Bases in water solutions show certain specific characteristics: bitter taste‚ feel slippery‚ and turn litmus paper blue. Acids in water solutions show these most common characteristics: sour taste‚ react with metals‚ and turn litmus paper red. The understanding of chemical reactions‚ such as acid

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    reaction of 0.139 grams of trans-cinnamic acid‚ 0.8 mL of glacial acetic acid‚ and 1.0 mL of 1.0 M of Bromine in acetic acid was recrystallized to form a solid‚ clear‚ crystal- like product. The melting was taken from the recrystallized product to determine what had been obtained. The melting point was found to be 130.5°C-133.7°C. Concluding that the product formed from the addition of bromine was a mixture of the erythro-2‚ 3-dibromo-3-phenylpropanoic acid‚ which has a known melting point of 204°C

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    Proposal Report: Acid Violence in Bangladesh Background: Acid throwing on women and girls are on the rise in Bangladesh. Of all the gender-based violence directed at women‚ one of the most horrific is acid attacks. Acids are used to disfigure and sometimes kill women and girls. Reported reasons for the acid-throwing attacks include the refusal of an offer of marriage‚ dowry disputes‚ domestic fights‚ and disputes over property.. For the last few years‚ it has been on the rise in

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    Identifying Organic Compounds Problem: Based on the color of the indicator‚ which type of organic compound will be found in each type of food? Hypothesis: If Benedict solution is added to honey‚ then it will turn. If Biuret solution is added to egg whites‚ then it will turn. If Benedict solution is added to corn oil‚ then it will turn. If Benedict solution is added to glucose‚ then it will turn. If Benedict solution is added to gelatin‚ then it will turn. If Benedict solution is added to butter

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    Acid & Base Lab

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    Purpose: To find out if the Unknown substances are bases or acids. Materials: goggles aprons paper for data table graduated cylinder unknown I substance beakers/test tubes stirring rod litmus paper pH indicator paper pH color chart phenolphthalein scoopula eye-dropper digital pH meter magnesium ribbon calculator unknown II substance forceps sodium bicarbonate Procedures: Test the pH of the Unknown substances with litmus paper and pH indicator paper and match to color chart

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    Acid Rain 8

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    Acid Rain is a type of air pollution‚ which is formed when oxides of sulfur and nitrogen combine with atmospheric moisture to yield sulfuric and nitric acids‚ which may then be carried long distances from a source before they are deposited by rain. This pollution may also take the form of snow‚ fog‚ or a dry form of precipitation. Acid rain is currently a subject of great controversy because of widespread environmental damage‚ for which it has been blamed‚ including eroding structures‚ injuring crops

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    acid fast stain

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    The acid-fast stain is performed on samples to demonstrate the characteristic of acid fastness in certain bacteria. Acid fastness is a characteristic that is shared by just a few organisms‚ so staining to determine if organisms possess this trait is useful in microbial identification schemes. The Ziehl-Neelsen method has endured as a reliable and effective way to demonstrate the acid-fast bacteria. Materials: 18-20 nutrient hour agar slant culture of Staphyloccus aureus 4 day old nutrient

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    CSEC CHEMISTRY NOTES ON SOLUBILITY OF COMPOUNDS IN WATER and SATURATED SOLUTION Reference: Chemistry‚ a Concise Revision Course for CXC by Anne Tindale From Chemistry for CSEC by Tania Chung-Harris and Mike Taylor Factors that influence solubility Temperature * The solubility of solids in liquids generally increases as temperature increases. * The solubility of gases in liquids generally decreases as temperature increases. (gases are less soluble in warm water than in cold water)

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