weighing paper digital scales rubber tubing (hose) acetic anhydride filter paper Mel-temp apparatus 10- mL graduated cylinder large test tube medicine dropper | Compound | FW (g/mol) | MP (BP) | density | Hazards | | Acetanilide | 135.17 | 114 ºC | ---
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2-7-1 Column of Air Resonance and the Velocity of Sound This activity uses the resonance of a column of air to measure the velocity of sound. English Activity: Setup í Equipment Glass Resonance Tube (Uniform Inside Diameter‚ With Scale Markings) Rubber Tube Reservoir Stand Low Frequency Generator (or Tuning Fork) Audio Measurement Setup (EA-200‚ graphic scientific calculator‚ data communication cable) Temperature Measurement Setup (EA-200‚ graphic scientific calculator‚ data communication
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Role of Folic Acid in Neural Tube Defects | A genetic‚ environmental‚ and nutritional approach to better understanding of abnormal conditions | | Darshak Joshi | July 6th‚ 2013 | | Introduction Human birth defects‚ today‚ continues to be a highly investigated research. There remain many convoluted combination of genetic and environmental factors that can cause birth defects. While some conditions are easily repaired through surgery‚ neural tube defects (NTDs) present problems
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“Test-Tube Burgers” One summer when taking a trip to a friends country house for a weekend I took on the challenge of being a vegetarian. My friend‚ an only child‚ had been raised a vegetarian by parents who were also vegetarians; never once in his life had he eaten meat. Although the family was tolerant of whatever I did‚ I decided this was an opportunity to try it for myself and see what it would be. At the end of the few days I found it quite easy‚ although in reality I did not consume nearly
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Using Charles’ Law to Determine Absolute Zero Background Info It is noticed that in this lab‚ as the temperature of the water in the beaker is increased‚ the distance between the pipette and water plug increases. When this distance increases‚ the volume of trapped gas also increases. This relates to Charles’ Law as it shows that the volume of a gas is positively proportional to temperature. Theoretically‚ absolute zero is the lowest possible temperature‚ where all molecules have the least possible
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Introduction The purpose of this experiment was to determine the rate law graphically from the rate of disappearance and the x y values also the specific rate constant (k). Activation energy was also determined‚ and the effect of catalyst was evaluated in the reaction between peroxodisulphate ion S2O82-‚ and iodide ion‚ I-. S2O82-(aq) + 3 I-(aq) --> 2 SO42-(aq) + I3(aq) The general expression for the rate law‚ given this overall reaction‚ is: rate of disappearance of S2O82- = k[S2O82-]m[I-]n
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Recently a scientist by the name of Mark Post helped create a “test tube” beef burger. The burger was grown in a solution of nutrients and cost about 330‚000 dollars to make. The burger was created by taking muscle cells from a cow and growing them into tissue. The meat had to be dyed to make it look like real beef. The meat contains no fat and is disease free. The meat was made in the Netherlands at Maastricht University. It was served to two volunteers and was flavored with egg powder and bread
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Results and Discussion 2.5.1. Morphological characterization of hollow fiber capillaries from FESEM images The longitudinal view of the hollow fiber is presented in Fig.3 (a). The outer surface was further magnified to look into the pore details in 5KX and 25 KX magnification‚ are shown in Fig.3 (b) and (c).The image of the hollow surface revealing the cut surface showing the inner layer of the hollow fiber are shown in Fig.3 (d). The fine structures of the fibers ‚ shown in Fig.3 (e) and (f) resembles
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Final Exam Essay Throughout this course I have gained specific knowledge through reading two different books and short stories out of another‚ I had the chance to understand an anthropologist’s point of view. Three ways that cultural anthropologists provide a unique and informative perspective on the social issues they study are: Looking at the circumstances through a participant perspective (avoiding ethnocentrism)‚ historical context‚ and concept of culture. In both Veiled Sentiments and In
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Coulomb’s Law 1. Objective - To study the validity of Coulomb’s law on a simple electroscope. This will be split into two parts; first measuring the the force as a function of distance‚ and second we will look at how the magnitude and sign of the charges affect the force. 2. Theory- As is well known‚ like charges repel and opposite charges attract. That being said‚ the strength of those forces also depends on the distance between the two charges
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