Experiment 4: ACIDS AND BASES: PH Measurements and Macroscale Titration CHM023L – A12 Group no. 6 Members: | Contributions: | | Conclusion | | Recommendation | | Tables and figures with analysis | | Principles‚ Equation | | Abstract‚ tables | Date Performed: February 28‚ 2012 - Tuesday Date Submitted: March 6‚ 2012 - Tuesday Submitted to: ------------------------------------------------- ABSTRACT: This experiment introduces us the pH measurement and application of macroscale titration
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Ronald Smith 8/26/13 Period: 5 Creative Writing Heavy Rain There was one a man who went by the name of Ethan. Ethan had a certain genteel about him‚ which made it impossible to believe that he was a serial killer. He would go to the neighborhood park and secede himself from the other families‚ watching and waiting for the perfect moment to kidnap and kill a young girl or boy. The kidnappings were so quick and scrupulous that by the time the parents had noticed the child was missing it was too
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Rain of Fire In the article‚ “Rain of Fire”‚ Evan Thomas‚ assistant managing editor of Newsweek magazine‚ wrote about the story from Virginia Dichiara‚ victim of September 11th incident. In brilliant morning of September 11th‚ DiChiara‚ a self-discribed workaholic‚ somehow felt moseying; so she left home at 7:40am which was 40 minutes later than her usual morning routine. Inside On 78th floor of World Trade Center‚ DiChiara switched to the second elevator which leaded her 101th floor where her
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Husband vs. Innkeeper In Hemingway’s story “Cat in the Rain‚” there are four characters; the husband‚ his wife‚ the innkeeper‚ and a maid. The focus of this story is on the wife’s want of a cat. The innkeeper resolves this issue but in the process makes the husband look bad. In fact in this story the husband appears insensitive‚ rude‚ and lazy; the innkeeper is contrasted as being completely the opposite of the husband. In this story it appears that innkeeper is a model of what this woman’s husband
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Ammonia and Hydrochloric Acid Lab Chemistry 1 Abstract The straw should be cut shorter to 8 cm in order to make the solid ring appear in the center of the straw. We achieved our goal‚ cutting the straw caused the gases to not have to go as far‚ and meet in the middle. Background The particles in a gas are very loose and tend to move around a lot very quickly. The particles in a solid are very compact and vibrate but don’t really move very much. The particles in a liquid however are more
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Megan Young English 1102 2/28/12 Cat in the Rain Cat in the Rain is a short story about an American couple on vacation to Italy. They are in their first year of marriage. The husband has a dismissive attitude towards the wife and the wife always wants more. In the story the couple has a lot of selfishness going on in their relationship. The husband ignores his wife’s needs and the wife and the wife is not satisfied with her husband. The theme of this story has a lot to do with loneliness in
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The story “Cat in the Rain” by Ernest Hemingway is about an American couple who stays at a hotel with a beautiful view of the sea and different monuments. After describing the view from their hotel room‚ on the second floor‚ Ernest continues the story with the American woman having a conflict. The story begins when she noticed a kitty outside her window trying to find shelter from the rain; she instantly wanted to go get the kitty. With her husband wanting to continue to read she started her journey
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Synthesis of Salicylic Acid Experimental Data: 1. Mass of methyl salicylate used: 0.232 g 2. Theoretical yield of salicylic acid: 0.211 g 3. Volume H2SO4 added‚ with units (drops or mL): 3mL 4. Mass of crude salicylic acid obtained: 0.250 g 5. Volume of water used as recrystallizing solvent: 2 mL 6. Mass of purified salicylic acid: 0.134 g 7. Percent yield of purified salicylic acid from reaction: 63.5% 8. Melting point of purified product: 158-160 oC 9. Name of NMR solvent used and
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Vol. 1 ACETIC ACID 115 ACETIC ACID 1. Introduction Acetic acid [64-19-7]‚ CH3COOH‚ is a corrosive organic acid having a sharp odor‚ burning taste‚ and pernicious blistering properties. It is found in ocean water‚ oilfield brines‚ rain‚ and at trace concentrations in many plant and animal liquids. It is central to all biological energy pathways. Fermentation of fruit and vegetable juices yields 2–12% acetic acid solutions‚ usually called vinegar (qv). Any sugar-containing sap or juice can
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EXPERIMENT 2: Recrystallization and Melting Point Recrystallization (or Crystallization) is a technique used to purify solids. This procedure relies on the fact that solubility increases as temperature increases (you can dissolve more sugar in hot water than in cold water). As a hot‚ saturated solution cools‚ it becomes supersaturated and the solute precipitates (crystallizes) out. In a recrystallization procedure‚ an impure (crude) solid is dissolved in a hot solvent. As this solution is cooled
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