Introduction The reaction rate of a chemical reaction is determined as the change in the concentration of a reactant or product over the change in time. [1] The rate of a reaction is determined by experiment. Many factors influence the rate of a reaction: the nature of the reaction‚ concentration‚ pressure‚ temperature‚ and surface area‚ presence of catalyst and intensity of light. [2] For a chemical reaction‚ the rate law or rate equation is a mathematical expressed equation that links the reaction
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nutrient deficient mediums. The biomass and standard chlorophyll content were the focus of the experiment. The biomass was measured by taking the mass of the plant. The standard chlorophyll content was measured by taking the absorbance of the leaf acetone solution. The results were significant for biomass but were only significant for the distilled water treatment. Nutrient deficiency has an effect on the biomass of plants‚ but we fail to reject the hypothesis that the standard chlorophyll content
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The differences in the characteristics of states of matter are given in the following table. S. No. | Solid state | Liquid state | Gaseous state | 1. | Definite shape and volume. | No definite shape. Liquids attain the shape of the vessel in which they are kept. | Gases have neither a definite shape nor a definite volume. | 2. | Incompressible | Compressible to a small extent. | Highly compressible | 3. | There is little space between the particles of a solid. | These particles have a greater
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SYLLABUS CHEMISTRY (043) CLASS-XII – (2012-13) Annexure - ‘ I ’ S.No. 1. 2. 3. 4. Type of Question Long Answers (LA) Short Answers-II (SA II) Short Answers-I (SA-I) Very Short Answer (VSA) Total Marks for No. of Total Marks each Question Questions 5 3 2 1 3 9 10 08 30 15 27 20 08 70 Weightage 4 5 5 5 4 3 8 5 3 4 4 6 4 4 3 3 70 Total: S.No. UNIT 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Solid State Solutions Electrochemistry Chemical Kinetics Surface Chemistry General Principles
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to incubate the medium for 24-48 hours. 1. GRAM STAIN The next step I took in finding my unknown bacteria was to gram stain it. This is used to differentiate the bacteria. The different staining reagents are: crystal violet‚ grams iodine‚ acetone-alcohol‚ and grams safranin. Under the microscope it was a pink color‚ which means Gram Negative. Also‚ the shape was a rod. 2. KLIGER’S IRON
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Project 17: Soaps and Detergents Stephanie Futrell Kelsey Duncan Tom Bunch Antwyone Clayborne Chemistry 1020 Laboratory‚ Section 007 Instructor: Fan Yang September 23‚ 2014 Our signatures indicate that this document represents our own work. Excluding shared data‚ the information‚ thoughts and ideas are my own‚ except as indicated in the references. Goals There was another oil spill that covered local birds in oil. The environmental group stepped in to help make their own soap
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effects – GABA GHB- powerful depressant‚ abused to induce euphoria and sedation. Used as a date rape drug Nitrous oxide and ether – Laughing gas/analgesics‚ Ether- nerve tonic for toothaches and other pains Most dangerous compound inhalants – acetone – benzene Hallucinogens Illusionogenic – Accurate way of what kind of a trip having on a hallucinagin Hallucinogens – Chemically similar to serotonin – LSD Belladonna – what witches rubbed on them ERGOTISM – St anthony’s fire - Fungus – moldy
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Aldol Condensation Formal Abstract: An aldol condensation reaction was performed on acetophenone using p-anisaldehyde and sodium hydroxide as a base. This produced trans-p-anisalacetophenone in the form of a fluffy yellow crystal. The reaction was performed in a test tube and sodium hydroxide was added drop by drop followed by recrystallization and vacuum filtration. In order to verify the presence of the ketone 2‚4-dinitrophenylhydrazone was synthesized and reacted with trans-p-anisalacetophenone
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A War Without End The Israeli – Palestinian conflict has been an ongoing conflict since the beginning of this century however its roots go back to the late 1800’s when a new political movement‚ Zionism emerged. The origin of the term “Zionism” is the biblical world “Zion‚” which is another word for the hill of Jerusalem or the Land of Israel. Zionism is a system of beliefs and ideas that express “the desire to return to their homeland‚” Israel.1 The idea of Zionism began with the “rise of national
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Further evidence for thein-vivo anti-inflammatory activity of Nasturtium officinale Abstract: Ethnopharmacological relevance:Aerial parts of Nasturtium officinaleR. Br. are used traditionally in Iranas a folk medicinein different illnesses which includebronchitis‚ asthma‚ diabetes‚ hypertension‚ and renal colic. Aim of the study:In the present study‚the anti-inflammatory activity of hydro-alcoholicextract from aerial parts of N.officinalewas investigated in acute and sub¬¬-acute models of inflammation
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