"Experiment for paper chromatography" Essays and Research Papers

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    Dynamic Trolley Experiment

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    Experiment Aim: To determine the acceleration of an object down an incline plane using various methods. Research Question: Is there a relationship between the angle θ of the incline and the acceleration down the plane? Equipment: * Ticker Timer (AC 50Hz ) * Incline (wood) * Meter ruler * Dynamic Trolley ( Mass: 380.55 ± 0.01g ) * Carbonated paper * Power Source (2W) * Data Logger * Motion Sensor * Tennis Ball Method for ticker tape experiment:

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    Physic Experiment 4

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    Title  Experiment with a spiral spring (Oscillation)  Objective  1. To show how the time of vertical oscillation depends on the load   2. To determine the spring constant   3. To determine the effective mass of the spring    Introduction    In  this  experiment‚  it  is  to  show  how  the  time  of vertical oscillation depends on the load‚  to  determine  the  spring  constant  and  to  determine  the  effective  mass  of  the  spring.  An  ideal  spring  is  remarkable  in  the  sense  that 

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    Experiment 7 Nabr

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    Experiment 7 General Safety Considerations 1. 1-Butanol and 1-bromobutane are toxic and irritating. Avoid all contact by constantly wearing goggles‚ gloves and working in the hood. Neither of these compounds can be poured down the drain. Like all products‚ 1-bromobutane should be turned in to your TA in a labeled vial. Any excess butanol should be discarded in non-halogenated waste. 2. H2SO4 is extremely corrosive. In very diluted form it can be poured down the drain‚ all other precautions

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    Zimbardo Experiment Ethics

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    emotionally and physically involved. Secondly he denied Richard Yacco the ability to leave. Whenever one conducts an experiment‚ all who are involved should have the right to end their involvement at anytime. Finally there was no proper debriefing‚ as well as it was argued that many left in a worse mental state then prior to the experiment. Now some may not be bothered by such an experiment in fact‚ we have seen other controversial studies such as Mailgrams’ study‚ where he was studying the conflict between

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    Cork Rocket Experiment

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    litre-bottle‚ Cork (if cork doesn’t fit into bottle‚ either cut it‚ or place paper towels around it so it will fit snugly into neck of bottle)‚ Paper Towels‚ Streamers (or anything light and dangly‚ paper is okay if it is in strips. This is purely decorative)‚ thumbtack (to attach streamers)‚ 1/2 cup of water‚ 1/2 cup vinegar‚ 1 teaspoon baking soda‚ and outdoorsy place. Lesson: This should be presented as a chemistry experiment. Ask the kids what a chemical reaction is? Did they know they can

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    1.09 experiments

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    Trial # Guess Observation Explanation Trial 1 The dyed red water will not seep into the blue cold water. My guess was indeed correct and red water did not interfere with the blue water. Because the molecules in the blue water are much closer together because its cold and well the red water has warm/hot water and the molecules are everywhere. The molecules in the blue water are so dense that they’re making a layer so that the molecules from the red jar do not come through. Trial 2 I think

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    Experiment 6

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    (1) Answer to Question in lab manual. NO introduction/background etc. 1. What is the retention time for caffeine? Retention time for caffeine : 4.149+4.142+4.152+4.1454 = 4.15 2. What is the retention time for benzoic acid? Retention time for caffeine : 2.651+2.817+2.857+2.9274 = 2.81 3. How are the retention times for caffeine and benzoic acid related to their chemical structure and the nature of the chromatographic

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    Discussion: Conclusions: • For both meters it was noted from plots that the difference in pressures are directly related to the rate of discharge. • Coefficient of discharge have a varying value depending on the rate of discharge‚ where in the Venturi meter the value of Cd increase gradually at first with increasing the rate of discharge till a point approaching one‚ then started to descend with further increment in the rate of discharge. • The Coefficient of discharge " Cd

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    Dancing Raisins Experiment

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    1. Dancing Raisins Here’s another quick and easy science experiment. All you need is a glass of clear soda‚ such as ginger ale or club soda‚ and several small raisins. Fill a glass with soda. Leave about ½ inch (12.5 mm) of space at the top. Drop the raisins in. Those tiny bubbles attaching themselves to the raisins are carbon dioxide (CO2) bubbles. The irregular surface of the raisins enables a lot of CO2 to accumulate. When enough gas bubbles attach to the raisins‚ they act like tiny balloons

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    Mall Social Experiment

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    We chose to conduct our social experiment at the Arizona Mills Outlet Shopping Center. Arizona Mills is located in Tempe‚ Arizona. Our experiment was conducted from 4:00 pm to 7:00. We chose this time frame to compare times of less traffic to the times after shoppers get off work. During the experiment the amount of shoppers increased from 1 shopper passing our position per minute to 3 shoppers passing per minute. The increase in shoppers happened close to 6:00 pm. We observed a mixture of social

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