Experiment 1: TLC Analysis of Analgesic Drugs 1/23/2011 Purpose: The goal of this experiment is to test our knowledge and understanding of TLC analysis by having us do a TLC analysis of analgesics to figure out their main chemical components. Calculations: 1.) Rf = Distance spot traveled/ distance solvent traveled Results: Table 1: TLC Analysis Analgesic Drugs | Rf Value | Acetaminophen | 0.323 | Aspirin | 0.597 | Caffeine | 0.081 | Unknown 154 (Plate 1) | 0.081‚ 0.306‚ 0.597
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The purpose of this lab was to determine if a there is a change in mass when a gas is produced and determine if gas has mass. To conduct this experiment‚ the group must be careful not to let the Alka-Seltzer tablet get wet before the bottle is closed by wiping the lip of the bottle and the cap so it remains dry‚ or risk gas escaping into the air and not being captured by the bottle. Also‚ the group must be sure to close the bottle tightly with the cap‚ because gas may escape this way as well. During
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Helicopter Experiment Prediction: As the mass on the helicopter’s copters increases‚ the speed taken for the rotors to spin down faster‚ this is because there will be more downward pull from gravity‚ as the terminal velocity for a paper helicopter is low. Variables: Independent variable will be the mass that we change throughout the experiment. The dependant variable will be the time that we measure for the helicopter to reach the floor. Finally the controlled variables include‚ the helicopter
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The Moral Aspects in Robinson Crusoe Robinson Crusoe‚ by Daniel Defoe‚ is a novel with a deep moral aspect. Really‚ the author introduces his novel as an adventure story‚ but he highlights the moral aspect more than the adventure side. That is‚ he aims to teach the reader the importance of reason through the disobedience‚ punishment and repentance of Robinson. Crusoe’s shift from disobedience to obedience shows everyman’s journey from suffering to God’s grace and mercy. This moral theme is built
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PE/DB/0313 FLUID MECHANICS Page 2 of 2 H7 Friction Loss in a Pipe Description Experiments The Friction Loss in a Pipe apparatus allows students to study the change in the laws of resistance for laminar to turbulent flow and find the critical Reynolds number. The apparatus shows the flow transition point from laminar to turbulent‚ and is ideal for demonstrations as well as student experiments. Study of friction loss in a pipe‚ including: The equipment is a small-bore‚ straight
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comprehension or as I like to call it creativity. Funny Enough‚ I use the ocean‚ something so serene and effervescent to describe my annual quarter life crisis. Unconciously however‚ that must be no mistake‚ seeing that Water will be the theme of the experiment I will be working with. I’m still a little skeptical as to how I chose Water . There was no real inspiration‚ or interest on such force but rather an intuition that drove me to further explore this element. Perhaps an unconscious inclination
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Milgram’s experiment helped to share a different perspective on how people deal with these types of situations. It showed me that the average person would follow an order regardless of their personal beliefs as long as they were guaranteed that it was justified in some way shape or form‚ or otherwise reassured that the person they would supposedly be harming would make it through with their life intact and only sustain minimal if any damage. The Milgram experiment was a social experiment on the obedience
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Why will insulators affect how long a test tube of hot water stays hot? Background Information I know that there are many different ways of insulating this test tube‚ shiny foil can be used because it’s a poor emitter of radiation and it will reflect escaping heat by reflecting‚ because this method is used in flasks to keep hot drinks warm. Though it is a good conductor so will lose heat through to surfaces its touching but it shouldn’t matter because it will be touching air and glass which both
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plants * Where to find: Under logs‚ moist leaf liter‚ in pet food dishes‚ flower pots (have water)‚ and under stones and bricks. Live in moist and shaded areas. Objectives: * Observe various aspects of a terrestrial isopod * Conduct experiments examining the responses of isopods to various environmental factors * Design and conduct an investigation of animal behavior: will the Isopods prefer a normal wet environment or a wet environment with diluted vinegar? Hypothesis: The
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| Analysis: The number of heart beats increase‚ as the caffeine concentration increases‚ as shown in the results. Conclusion: The hypothesis was correct as the heart beat did increase as the caffeine concentration increased. However‚ this experiment could have been more fair due to the following: * All the daphnia used
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