Gringard Synthesis detailed procedure and scheme of the apparatus any changes to the original procedure‚ actual masses‚ and obs yield calculations and mp Discussion outline Grignard rxn (what is it used for‚ why important‚ the mechanism) Reaction set up (important details) How can the rxn be activated Second step: rxn of the Grignard reagent with acetophenone‚ quenching with ammonium chloride Isolation of the product‚ identification Possible or actual sources of error Part one of our experiment
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the world has to make firm decisions to try to slow the warming and eventually to reverse it. Some politicians agree‚ but many lack the political will to press for urgent changes. Many scientists believe it is already too late to stop a 2 degree Celsius rise in temperature. Already there have been changes. Extreme weather events are becoming more common. Heat waves have been happening. Famine is worsening in Africa. Sea levels are rising and the Pacific Island countries are desperate
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dissolve the product. The mixture was then left to cool and was placed in ice to aid crystallization. The product was vacuum filtrated after a few minutes of standing in ice and the crystals were collected and dried in a vacuum oven at 40 degrees celsius. The mass of the crystals was calculated and the melting point was determined. Results: Product appearance: white shiny flake like crystals. Weight of product and watch glass: 39.14g Weight of empty watch glass: 36.64g Weight of
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Linear Equations in Two Variables Exercise 3 Q1. Draw the graph of each of the following linear equation in two variables: (i) x + y = 4 (ii) x – y = 2 (iii) y = 3x (iv) 3 = 2x + y Sol. (i) The given equation is x + y = 4 y = 4 – x …………….equation (1) Now ‚ putting the value x = 0 in equation (1) y = 4 – 0 = 4. So the solution is (0‚ 4) Putting the value x = 1 in equation (1) y = 4 – 1 = 3. So the solution is (1‚ 3) Putting the value x = 2 in equation (1) y = 4 – 2 = 2. So the solution
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Enzyme Reaction to Variable Elizabeth Alvidrez University of Texas at El Paso Abstract: An enzyme is a protein that serves as a biological catalyst (Denniston‚ 2007). Metabolic reactions happen with in cells. Enzymes are proteins that are used to speed up these reactions without being consumed by them (Mader‚ 2010). Catalase is a catalyst that digests potent hydrogen peroxide and converts it into H2O and O (Campbell Reese‚ 2008). The environment plays an important role
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1. The volume of twenty-five pennies in cubic centimeters. 2. A TMS student whose hair is longer than 4 decimeters‚ from root to tip. State the length of hair in centimeters and have him/her sign your paper. 3. The mass of a half-eaten peanut butter and jelly sandwich in grams. 4. The mass of a newspaper in kilograms. 5. The definition of scavenge. 6. The length of a teacher’s shoe (not science or math) in centimeters. Give teacher’s name and ask him/her to initial. 7. Something
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mperate climate. The average temperatures are 22 degrees celsius (71 degrees fahrenheit) to 27 degrees celsius (80 degrees fahrenheit).There are two recognizable seasons in Vietnam. The colder season happens from November to April. The hotter season happens from May to October. The different temperatures in the seasons are very similar in Southern Vietnam‚ but still noticeable. The difference in temperature is about 3 degrees celsius (37 degrees fahrenheit). The most noticeable changes are
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Freeze! The Effect of Super Cooling Water on Nucleation in Aqueous Solutions Hunter B. Tuck Author Note Hunter B. Tuck‚ Southside Virginia Community College‚ Keysville‚ VA. Contact: huntertuck1212@gmail.com Abstract This particular study demonstrated the overall effects of super cooling different types of aqueous solutions. In similar studies conducted upon super cooling water‚ researchers have only used distilled water in their experiments. In this study‚ however‚ rain‚ tap‚ and purified bottled
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The Moon Jellyfish in the scientific world is known as the Aurelia aurita. It is one of the most common jellyfish along the Atlantic Coast. It is reportedly less venomous than other jellyfish. The Moon Jellyfish is usually translucent white‚ pink or beige. It is in the Kingdom Animalia‚ Followed by the Phylum Cnidaria. The Moon Jellyfish is in the class Scyphozoa. Its belongs to the order Semaeostomeae. It is in the family Ulmaridae and the Genus Aurelia. The Moon Jellyfish belongs to the Species
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Extraction of DNA Science Fair Project 2013-2014 Produced by Nadia Walker Due Date: Monday January 20th 2014 Presented to Mr. Freimann Date Submitted: Monday January 20th 2014 Table of Contents Introduction page 1 Hypothesis and materials
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