This hydroxyl group can be removed by a process known as dehydration which results in the production of cyclohexene at the end of the dehydration process in the presence of a catalyst which‚ in this case‚ was 85% phosphoric acid. Dehydration can be defined as any chemical reaction which involves the removal of a water molecule from a substance. During the experiment‚ anhydrous calcium chloride was provided as a drying agent to ensure that pure cyclohexene was obtained‚ calcium chloride works by binding
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Preliminary Experiment (4% yeast concentration) Hydrogen peroxide volume – 5 cm3 Water Volume -0 cm3 Concentration Volume- 20 vols Time in Seconds Volume of O2 (cm3) Experiment 1 Experiment 2 Average 30 95 94 94.5 60 100 100 100 90 100 100 100 120 100 100 100 150 100 100 100 180 100 100 100 Modifications The results from my preliminary experiment show that 100 cm3 of oxygen has been produced in the first 30 seconds.. This reaction is far too quick and will prevent me from analysing
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HOW INTEREST RATES AFFECT OUR PURCHASING DECISIONS Fluctuating interest rates have a decidedly large impact on purchasing decisions. Higher interest rates mean that consumers don’t have as much disposable income and must cut back on spending. When higher interest rates are coupled with increased lending‚ banks makes fewer loans. Lower interest rates make it easier for farmers and manufacturers to borrow to invest in equipment and buildings. That gives business more incentive to invest
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2. Here is an electrode reaction : Cu → Cu2+ + 2e-. [i.e. Cu- 2e- →Cu2+]. At which electrode(anode or cathode) would such a reaction take place. Is this an example of oxidation or reduction. Ans : - At anode. Oxidation. Q. 3. A solution contains magnesium ions(Mg2+)‚ iron (II) ions (Fe2+) and copper ions (Cu2+). On passing an electric current through this solution which ions will be the first to be discharged at the cathode. Write the equation for the cathode reaction. Ans.: - Mg2+ Q.4. An electrode
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Name: ____________________ /35 How Does Temperature Affect Respiration Rates of Fish? Google the web site www.biologycorner.com/ and in the upper left corner search for “goldfish lab”. Select the fish temperature lab. Use the simulator to gather data. Contact 4 classmates and get their data. (or run the simulation 5 times yourself) Complete the table. Complete a graph using the average respiration rate vs time. Answer the questions. ** no additional report is needed** Introduction:
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Compounded with natural rubber and styrene- butadiene in the production of automotive tires. The process for creating styrene-butadiene rubber was through an emulsion procedure that used polymerization as the means of producing a material that had a low reaction viscosity‚ yet had all the attributes of natural rubber. The butadiene industry originated in the years leading up to World War II. Many of the belligerent
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|Zn |Mg |Cu |Pb | | |(+) clear liquid but the |(+) a black spot appeared on|(-) no reaction occurred |(-) no reaction | |Pb(NO3)2 |Zinc itself turned glittery |the sliver of magnesium. | | | | |(+) the liquid looks |(+)
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In the experiment‚ the effect of light intensity on the rate of photosynthesis will be tested. Photosynthesis is the process in which autotrophic plants create their own food (energy) from sunlight. Photosynthesis involves three ‘ingredients’ or reactants‚ carbon dioxide‚ water‚ and light energy (sunlight). Carbon dioxide and sunlight come in through a leaf’s stomata which are tiny holes‚ and water is absorbed through their roots. When all of these reactants are combined in a plant’s chloroplasts
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“Shifting Terrain: Increasing Rate of Plastic Surgery among Women;” Jiyoung Jang State University of New York at Geneseo Women always want to be a beautiful regardless of their age. The main reason why women are so eager to have a perfect face and body is the portrayal of celebrity in the media. Television commercials‚ magazine covers and internet advertisements constantly show the ideal beauty of women. Gaye Tuchman‚ professor of Sociology in Queens College and the Graduate
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amount of oxygen. The furthest light from the plant led to the least amount of oxygen produced for the three different distances. These results show how the rate of photosynthesis and the by-product produced is increased as the intensity of light is increased. The second part of the experiment reveals that the color of light also has an effect of the rate of photosynthesis. The red light resulted in the greatest amount of oxygen produced and the blue was not too far behind. Green produced the lowest
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