Experiment 1: Calorimetry Nadya Patrica E. Sauza‚ Jelica D. Estacio Institute of Chemistry‚ University of the Philippines‚ Diliman‚ Quezon City 1101 Philippines Results and Discussion Eight Styrofoam ball calorimeters were calibrated. Five milliliters of 1M hydrochloric acid (HCl) was reacted with 10 ml of 1M sodium hydroxide (NaOH) in each calorimeter. The temperature before and after the reaction were recorded; the change in temperature (∆T) was calculated by subtracting the initial temperature
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Experiment 1: Bromination of Acetanilide1 Precautions: Ethanol is flammable Sodium hypochlorite is an oxidizing agent and releases toxic fumes (handle in fume hood) Acetic acid is corrosive‚ harmful if inhaled‚ flammable and can cause burns (handle in fume hood) Gloves are recommended to avoid chemical contact with skin Reaction Scheme: Conversion of acetanilide to p-bromoacetanilide Procedure: To a 125 mL Erlenmeyer flask containing a mixture of 95% ethanol (6 mL) and acetic acid (5 mL)‚ dissolve
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fire-power‚ mobility and versatility of the main battle tank is a key component of tactical fighting forces. The modern battle tank is the culmination of technical trade-offs between firepower‚ protection‚ and mobility . These trade-offs are the result of technologies and advancements dating back to World War I when Britain first deployed an armored‚ heavy fire-power vehicle during trench warfare. The technological advantages of an effective modern tank give armies and other forces fighting advantages
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Public sector duty regarding socio-economic inequalities (1)An authority to which this section applies must‚ when making decisions of a strategic nature about how to exercise its functions‚ have due regard to the desirability of exercising them in a way that is designed to reduce the inequalities of outcome which result from socio-economic disadvantage. (2)In deciding how to fulfil a duty to which it is subject under subsection (1)‚ an authority must take into account any guidance issued by a
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(if desired) when connecting to a work-producing device. The problem we face is to devise a convenient method to allow the houseperson to compale prices for the various gas cylinders available at the supermarket. The usual size for most cylinders is 1 m3‚ but the initial air pressure and temperature vary widely. One produced by R. Jones‚ Jr. is widely advertised to be quite economical‚ but our analyms indicated that the cylinder contained no air at all[ R. Nader III is expected to object to this
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decided to start my own fish tank! First I had to grab all of my materials. My tank is a lovely 55g with a stand and lots of figurines. Then I had to go through the steps of setting up the tank‚ picking a location‚ making sure everything looked perfect. Then came the even more fun part of cycling it. It wasn’t easy‚ but hopefully what I have learned along the way can help you to start your own fish tank too! II. Body A) The most important step to owning a fish tank‚ is finding one! That’s not
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profoundly stuck out to me the most was the “water tank‚” lab. The procedure of the lab was to shoot a red laser beam into the tank of water from three different directions. I first shot the laser from above the water surface‚ then from below‚ and finally from the side of the tank. Interestingly enough‚ each direction‚ the laser would bend in the water. The fascinating part of this lab was the idea as to why the laser could not exit the water tank‚ and instead would bend equally in each direction
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Menezes António Melo‚ Carmo Melo‚ José Sacadura‚ Mafalda Gomes and Ricardo Santos th 15 December 2014 Shark Tank -‐ Negotiation Analysis 2 SHARK TANK -‐ NEGOTIATION ANALYSIS INDEX SHARK TANK 3 THE SHARKS 3 THE BUSINESS: SCRUB DADDY 6 THE NEGOTIATION PROCESS 6 ANALYSIS
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The golden age of tanks was during WWII‚ this is because at this time tanks were superior and engineering had improved since WWI. People say WWII was most affected by tanks‚ because tanks gave shelter to people rushing behind one and it was a massive and powerful death machine in the front. Tanks were also used for safe transportation‚ and many missions needed a transported artillery weapon. People without anti-tank weaponry could not defend against these tank rushes. You would need a big impact
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Questions and Problems: 1. Describe the type of meter movement used in analog meters. The current in the circuit is used in basic meters to measure the voltage drop or current in the circuit. The current passes through the coils of wires‚ which is then magnetized. Inside the apparatus‚ there is also a permanent magnet which opposes the magnetic field of the magnetized coil of wire that is connected to the pointer therefore‚ as we see in meters‚ the pointer moves. There is also a spring connected
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