MA‚ PAULINE Date Performed: 10 SEPTEMBER 2014 NACIONGAYO‚ DANIELLE Date Submitted: 17 SEPTEMBER 2014 TEDERA‚ YVES HEAT EFFECTS AND CALORIMETRY Experiment No. 2 I. RESULTS A. Determination of Heat Capacity In this experiment‚ an improvised calorimeter was used to determine the heat capacity. The calorimeter weighed 4.47 grams prior to the addition of water. Tap water‚ 40 mL to be exact‚ was added to the calorimeter which increased the weight to 43.87 grams. The water was measured using
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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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The story seems to begin in Ethiopia‚ where the coffee berry grew wild. Goatherds there noted that goats which ate leaves and berries of the plant remained awake all night. The Arabs claim that they developed the plant during the reign of Mohammed (c675 AD). Believe that if you wish - we are going with the Ethiopian story. Consumed originally as a food‚ it would take on the character of a medicinal and eventually that of a social drink. The coffee tree grows to a height of 14 to 20 feet‚ producing
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CHEMISTRY IA: Processing CALORIMETRY QUANTITATIVE DATA TAKEN (07.05.14 and 21.15.14) Initial Pringle Mass H20 Amount Final Pringle Mass Δ Pringle Mass Initial H2O Temp (± 0.5°C) Max H2O Temp (± 0.5°C) Δ H2O Temp (± 0.5°C) SAMPLE 1 10g 225mL 1.85g 10g-1.85g=8.85g 22.3°C 59.8°C 37.5°C SAMPLE 2 10g 225mL 0.95g 10g-0.95g=9.05g 21°C 61.1°C 40.1°C SAMPLE 3 10g 225mL 1.95g 10g-1.95g=8.05g 23°C 58°C 35°C SAMPLE 4 10g 225mL 1.85g 10g-1.85g=8.15g 50.5°C 83°C
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Summary These experiments were conducted to find the specific heat of a metal as well as the heat of solution of a solid. Both experiments required the use of calorimetry to measure heat flow and temperature change. The specific heat of the metal was found by heating it in boiling water before transferring it to the calorimeter that was partially filled with water. After shaking the calorimeter‚ the temperature change was measured and recorded. This information was used to calculate the specific
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THE WORLD CUP Ow! I said as Eric slide tackled me. We were playing a two vs. two game and max was on my team while James was on Eric’s team. "Free kick" I said‚ "fine" said Eric as I trotted over to retrieve the ball. When I set the Ball down James stood right in front of it. "Get out of the way James" Max said. Finally James got out of the way and I kicked the ball. It took a slight deflection and went into the dump. "Not again" I said as I walked over to look in the dump for the ball. As we
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Coffee is the world’s second largest traded commodity it is used not only for drinking but for soft drinks and cosmetics as well‚ it is second only to oil according to all imports and exports from all countries. They are two main types Arabica coffee (most people are used to this and are more popular) and there is Robusta coffee. In the last two years the prices of coffee have been gradually falling (Ycharts. (2013). Coffee Arabica Price) alongside this‚ the supply of coffee has also been falling
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Second Cup Smart Options Campaign Our approach to this assignment was to visit Second Cup vendors and their competition‚ Starbucks. Upon speaking to the management at the Second Cup at York University‚ we were able to obtain promotional material‚ including a poster from a recent campaign for orange-flavoured beverages. We decided to investigate their “Smart Options” campaign to determine the types of market research they had used in order to arrive at their final positioning strategy.
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Purpose: is on the topic of caffeine... its beneficial effects AND its negative effects. Statement: also to inform coffee users about coffee. Introduction I Open with impact: before you go to Starbucks store buy take and take a sip of your favorite coffee… A Wouldn’t you want to know a better about what you benefit and don’t out of your coffee? B I drink a lot of coffee‚ so I was wondering how that might affect my health C This inspired me to do some research on the subject II Thesis:
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Coffee and Tea Tea and coffee are both very old beverages that have been enjoyed for ages for their rich flavor and tasty ingredients. People also appreciate the health benefits of these flavorful drinks‚ yet there are just as many comparisons as there are differences between these two beverages. Tea has been favored both for its health benefits and for its unique flavor. Tea has been a main part of people’s diets in the eastern world as well as of places in the west‚ like England. Today it is
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