Separating the components of Panacetin Umar Hussaini Sneha Ray 9/30/14 Abstract In this lab we separated components of a simulated preparation‚ panacetin and making use of its acid base properties. To obtain such a pure compound‚ the compound we want must be separated from its other natural components‚ which can be done by manipulating physical and chemical properties. Panacetin contains sucrose‚ aspirin and an unknown which can be acetanilide or phenacetin in which phenacetin
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we get to the Bunsen burner‚ you need to know some important stuff: SAFETY. Safety is very important‚ because once you do not obey the rules‚ you can be in big‚ big trouble. So let me tell you the safety rules: 1. always wear a lab coat/lab goggles when doing a experiment because it includes very good safety for example the lab coat does not (or hardly) catch fire. 2. If your hair is long: tie it into a ponytail‚ because once it catches fire that’s then that about it‚ of your hair and maybe
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Biology coursework Hypothesis: I predict that the longer you are contracting the peg the slower you will become when doing so‚ this is because of muscle fatigue. And when taking two seconds between each contraction the speed will decrease at a much slower rate than if you are doing the contractions as fast as you can. The science backing up my hypothesis: The higher the intensity of any type of exercise the more lactic acid is produced in a certain amount of time‚ this is by a means of anaerobic
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EXPERIMENT 3 Name: Flame Tests & Electron Configuration Pre-Laboratory Questions and Exercises Due before lab begins. Answer in the space provided. 1. Write electron configuration for the alkali metals Li‚ Na‚ K‚ and Rb. Li ____He 2s1_____________________________________________ Na ____Ne 3s1______________________________________________ K _______Ar 4s1___________________________________________ Rb _______Kr 5s1___________________________________________ 2. Write the electron configuration
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the other types of potatoes used in the experiment. Materials: Test tube rack 4 test tubes Graduated cylinder Beaker 10-15 mL of hydrogen peroxide Potatoes Raw potato Potato soaked in baking soda Potato soaked in baking soda Stopwatch Goggles Procedures: 1. Get all your materials. Put all the potatoes into individual test tubes. 2. Pour 3mL of hydrogen peroxide into one test tube. Watch and time how much time goes by before the reaction begins. 3. Observe and write down the time
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polarity on the solubility of solutes in variates of solvents and helped us to determine the polarity of the unknown solute. In this lab‚ we observed the effects of adding polar liquid solutes to non-polar liquid solvents. Materials used: Safety goggles 3 graduated cylinders ethanol‚C2H5OH solid iodine‚ I2 glycerol‚ C3H5(OH)3 water 10 rubber stoppers 10 test tubes kerosene ammonium chloride‚NH4CL an unknown solute The polarity of a solute or solvent
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Internal Assessment: Rate of Evaporation Ann George Mr. Frias/4th Period Wheeler High School Research Question How will changing the molar mass of alcohol affect the rate of evaporation‚ represented by the change in temperature over time‚ measured using a temperature probe? Research/Abstract Alcohol is an organic compound in which the hydroxyl functional group‚ OH‚ is bound to a carbon atom. Its carbon center should be saturated; it should have single bonds to three other atoms. The different types
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ASSIGNMENT 02 8 APRIL 2013 ESSAY TOPIC: TECHNOLOGY SIMPLIFIES MODERN LIFE TASK 1: TABULATION ARGUMENT FOR ARGUMENT AGAINST Topic sentence: Topic sentence: 1. Increase efficiency and productivity because humans are slow and they fail to deliver on time 1. new technology people are becoming less healthy as they can use the technology to do all the work for them 2. Changed health industry e.g reduces mistakes made by Doctors 2.technology created might not be useful for everyone and sometimes
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Running head: LAB 5: INVESTIGATING AN ENZYME-CATALYZED REACTION Lab 5: Investigating an Enzyme-Catalyzed Reaction September 24‚ 2014 Principles of Biology 120.601 Mrs. Annemarie Duncan Abstract: (Burmania) This experiment was performed in order to examine ways in which a potato catalase enzyme reacts to various assays with differing variables. To do so a baseline assay (undiluted extract and room temperature H2O2) was used within the experiment with only one other variable changed in
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For Children With Autism‚ Opening a Door to Dental Care By CATHERINE SAINT LOUIS OCTOBER 20‚ 2014 4:57 PMOctober 20‚ 2014 4:57 pm 9 Comments CreditKatie Hayes Luke for The New York Times KATY‚ Tex. — Like many parents of children with autism‚ Nicole Brown feared she might never find a dentist willing and able to care for her daughter‚ Camryn Cunningham‚ now a lanky 13-year-old who uses words sparingly. Finishing a basic cleaning was a colossal challenge‚ because Camryn was bewildered by the lights
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