Gather all of your equipment‚ a LabQuest 2‚ two friction blocks (one with sandpaper and one with foam)‚ a force sensor‚ slotted masses‚ a ruler‚ and two sheets of graph paper. Weigh the two friction blocks in kilograms. Then multiply that number by g‚ 9.8‚ to find the blocks’ weights in Newtons and record it. Plug the force sensor into channel 1 of your LabQuest 2‚ this allows you to calculate the amount of force that you pull the block with. Choose six of the slotted masses to place on the blocks
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The experimental melting point range of the desired alkene product‚ trans-9-(2-phenylethenyl) anthracene‚ was found to be 132-134 ˚C‚ in comparison to the literature value melting point range of 130-132˚C‚1 it was slightly higher than expected. Overall‚ the experimental melting point range varied from the initial melting point temperature and maximum melting point temperature by 2˚C. As the experimental melting point had a small range of temperature variance and was above that of the literature value
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BIOSC 0050 Oct. 9‚ 2012 Dead or Alive? (Week 2) Post-Lab Assignment Results: The results of the Feulgen’s Schiff’s Stain test are that samples ALV-188-23 and ALV-843-20 turned magenta and samples ALV-882-21 and ALV-694-02 did not turn magenta. The result of the tetrazolium test is that all four of the samples did not turn pink. We were not able to conduct the detailed analysis of cultured plates with growth‚ so not results are available for this test. Discussion: For the Feulgen’s/Schiff’s
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that NaCl (sodium chloride) held the highest amount of electrical conductivity for all groups and on the table it reads the highest numbers across its row. Also as seen in the data above‚ ethanol had the lowest amount of conductivity with sucrose‚ acetic acid‚ ammonia‚ and MgCl2 following in ascending order. It can also be determined from Table 1 that there were 2 solutions with strong electrolytes‚ 2 with weak‚ and 2 with no electrolytes. The two solutions with strong electrolytes were NaCl and
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NaHCO3 with HCl to form NaCl and two other products and then calculate the mole relationships between NaHCO3 and NaCl and calculate a balanced equation for this reaction. Safety: • Wear safety goggles at all time • Handle all chemicals with care • Use equipment like tongs when handling warm/hot objects • If chemicals are spilt on self‚ wash off immediately • Stand at all times Hypothesis: The NaHCO3 will react successfully with the HCl and will form NaCl‚ H2O and CO2. Then be able
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stress What is Stress? Stress can be defined as negative concept (Mental symbol use in denoting classes of things) which possesses the potential to influence a person’s psychological and physical wellness (Wikipedia: 2012) Stress can also be described as normal but physical responses to conditions‚ events‚ occurrences‚ situations which try to deprive us of our balance in anyway. For example‚ when somebody senses danger whether real or imagined‚ the body mechanism of defences immediately kicks
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even something inanimate like sound could affect so much of biological processes. The movement of energy through matter produces sound. Sound is a mechanical wave that travels in waves and has the ability to move particles. Noise pollution is the result of the rapid and loud buzzing of a city‚ factory‚ piece of machinery‚ etc. The vibrations caused by energy vibrate the air particles around it and produce sound waves. These
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Oxydrene: Game changing Ergogenic aid or all hypes In today’s fast paced fitness world everyone is trying to become the next super athlete and everyone is trying to get there in the shortest amount of time possible. Everyone wants to be like somebody but only better. The want to win and win often is higher than ever. An example‚ when Arnold Schwarzenegger appeared in the mainstream media‚ everyone wanted to be a bodybuilder. How did he achieve such success? How is he that big? The Austrian Oak
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Lizz Radican Lab 4 2/24/14 The Diels-Alder Reaction: Results and Problems 1.) Table 1: Mass‚ Percent Yield and Melting Points for Diels-Alder Reaction Products. Product Mass (g) Percent Yield Melting Points (°C) Anhydride 8.87 88.2% 164.4-165.8 Dicarboxylic Acid 3.20 71.9% 176.6-180.1 Unknown 1.66 111% 168.7-176.0 2.) See attached calculations. 3.) Table 2: Anhydride Product IR Data: Functional Group or Bond Peak Location(s) (cm-1) Peak Intensity Symmetric
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Jason Grannum Professor Heeneman Bio 152-100 February 27‚ 2013 Fruit Fly Lab Data from my group: Vestigial winged offspring: 0 Wild Type winged offspring: 10 Data from class: Vestigial winged offspring: 42 Wild Type winged offspring: 237 Data from all classes: Vestigial winged offspring: 345 Wild Type winged offspring: 1‚297 The hypothesis of the fruit fly mating experiment was that when placing homozygous recessive virgin female fruit flies in
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