A Bunsen burner can be very useful if is as used properly. There are many different types of Bunsen burners but they all use a mixture of gas and oxygen to make a flame that could be used in a laboratory. To use a Bunsen burner‚ there are several critical steps. But before one starts any experiment‚ one should always read through the experiment procedures and make sure that one clearly understands all steps of the experiment. First‚ one must make sure the main gas is on. It is very important
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Chemical Gas Tests Procedure Part 1: Hydrogen and Manganese Dioxide 1. Inserted 4mL of hydrogen into a test tube 2. Scooped a little amount of manganese dioxide on the end of a wooden splint 3. Allowed the tip of the splint to flame using the Bunsen Burner 4. Allowed the reaction to proceed for a total of 15 seconds. 5. Placed the glowing splint into the test tube 6. Recorded the results Part 2: Magnesium strip and Hydrochloric acid 1. Poured 3mL of hydrochloric acid into a test
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TASK 2Create a powerpoint presentation‚ a prezi‚ a music video‚ a slide show‚ or a written essay with pictures that shows and explains the reasons for the fires that displaced people during the 1970’s in New York City and the effect these fires had on people and the neighborhoods. In this task the readings include: 1. An introduction 2. A reflection about the South Bronx written by a writer for The Post 3. An interview with a journalist who covered the fires in Bushwick 4. An oral history from someone
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Lab Report 3: Combustion of Magnesium and Specific Heat of a Metal C4C Jeffrey Silvin Fall 2017 Major Kittle Chem 100 T1 Introduction The purpose of this lab was to determine an experimental value for the heat of formation of MgO with Hess’s Law and then use the result to find percent error. To do so‚ approximately 50 mL of 1.0 M HCl was added to a calorimeter. Initial temperature was measured and then 0.25 g of Mg was added. After the reaction is completed the maximum temperature was recorded.
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Classes of Chemical Reactions Whenever a reaction takes place‚ energy is changed as well when the substances react chemically. Scientists have taken these changes in energy and generalized them. Scientists can take these generalizations and discover more about the nature and tendencies of matter. In this lab‚ the purpose was to perform seven reactions‚ write down their equations‚ and identify the type of reaction. In this lab report‚ several methods of displaying this information will be applied
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Energy Value of Bread Experiment Plan: By Aneesa Khan 10JF What you will need: * Eye protection * Thermometer * Boiling tube * Measuring cylinder (25 cm3) * Bunsen burner * Heat resistant mat * Mounted needle * Teaspoon * Stand and clamp * Bread Safety: Wear eye protection. You must NOT taste or eat any of the foods used in the experiment. Method: Using a test-tube a. Measure 10 cm3 of water into the test-tube. b. Clamp the
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Method 1. Sterilise all of your equipment with ethanol‚ blue flame or disinfectant if you can flame it. 2. Collect all equipment together ensuring you collect your goggles and gloves as you are using a flame and gloves and goggles are part of safety precautions. (don’t wear gloves with messing with Bunsen burner only goggles‚ but use gloves when messing with chemicals ensuring goggles on all the time) 3. Clean your surface with disinfectant to sterilise your lab work surface‚ this will prevent
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Design Objective: Find the standard molar enthalpy of combustion for magnesium. Manipulated Variables- volume of HCl‚ length of magnesium strip‚ mass of magnesium oxide‚ Controlled Variable- type of calorimeter (Styrofoam cup) Responding Variable- change in temperature Procedure: 1. Cut out 3 pieces of magnesium strips each with lengths of maximum 5 centimeters. 2. Measure and record the lengths of the magnesium. 3. Scrub the magnesium strips with steel wool to clean out impurities
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People of the whole world are responsible for climate change.Their ignorance is the main reason behind it.For instance‚ USA has been most widely seen as the counry having the most negative efforts on the world’s climate change followed by China‚Germany has received the best ratings. United Nations Framework Convention on Climate Change agreed that the developed countries are mainly responsible for the current global emissions of greenhouse gases.Just for social and economical development they
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Chemistry of Crime Scene Investigation Burn Baby Burn (Arson experiment) Question #1 PURE: 1‚2‚4‚5‚9‚13‚14‚18‚19‚20 MIXTURES: 3‚6‚7‚8‚10‚11‚12‚15‚16‚17‚ Question #2 DID NOT HAVE THE TWO GASOLINE EXAMPLES IN THE PACKET PRINTED. INFORMATION NOT PRESENT. Question #3 Our group decided that we wanted to find out if foam changed the burning rate and style of pine wood. To do this we first burnt just wood. Then we burnt wood with our accelerator Zippo lighter fluid. Then we burnt
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