H2O, Hydrogen Peroxide : H2o2 * Empirical Formula: water HO, Hydrogen peroxide: HO * Structural Formula : water HOH, hydrogen peroxide: HOOH quetion: how many atoms of carbon, hydrogen, and oxygen are present in a single molucule of citric acid C3H5O(CO2H)3 Carbon: 6 Hydrogen :8 Oxygen: 7 Chemical Bonding * Bonds form between atoms when they share electrons * Different types of bonds: Ionic compounds: metal+nonmetal, Covalent compunds Naming Ionic Compounds Polyatomic Ions
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1. BIOCHEMISTRYLABORATORY(Midterm)Geromil J. Lara, RMT, MSMT 2. ACTIVITY 1A /1B Subcellular Components of the Living Cell• 5% Trichloroacetic Acid – Suspending medium – Able to precipitate proteins – Good fixative and preservative 3. ACTIVITY 1A /1B Subcellular components of the Living Cell• Sediment 1 – Nuclear Fraction – Nuclei and Unbroken Cells• Sediment 2 – Mitochondria• Sediment 3 – Microsome – Proteins, Enzymes, Inorganic Ions 4. ACTIVITY 1A /1B Subcellular components of the Living Cell•
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www.studyguide.pk Acids, Bases and Salts THE THEORY of ACIDS and ALKALIS and a few technical terms: o Acids are substances that form hydrogen ions (H+(aq)) when dissolved in water eg hydrochloric acid HCl gives H+(aq) and Cl-(aq) ions, sulphuric acid H2SO4 gives 2H+(aq) and SO42- ions and nitric acid HNO3 gives H+(aq) and NO3-(aq) ions. o Alkalis are substances that form hydroxide ions (OH-(aq)) in water eg sodium hydroxide NaOH gives Na+(aq) and OH-(aq) ions, calcium hydroxide Ca(OH)2 gives Ca2+(aq)
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Acid and Base Extraction Finding the unknown compound by extraction using their conjugate acid and base. Huda Introduction The purpose of the acid and base extraction lab is to determine the unknown mixture that contains three compounds which is made of an organic acid, an organic base and an organic neutral. To find out what the unknown compounds are found in the mixture, a series of techniques are done. To extract the compounds from the given unknown mixture, they were changed back to their
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Associate Level Material Scientific Method Virtual Biology Lab: How Does Acid Precipitation Affect Trees? Please note that the questions below are found electronically in the lab. You are required to provide your answers on this word document instead of answering them in the virtual lab since the electronic submission of your answers from the lab will not reach your instructor. As you work through the lab, it will ask you to answer certain questions. Answer the questions that are required and
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Acid rain- or acid deposition is rain that is made acidic (between pH 0 and pH 7) by chemical pollutants in the atmosphere, such as sulphur dioxide and nitrogen oxides that it becomes harmful to the environment. Acid rain is formed when the above mentioned chemicals react with water and oxygen to form solutions of nitric and sulphuric acid. Acid rain has two forms: dry deposition and wet deposition. The pollutants, sulphur dioxide and nitrogen oxides, enter the atmosphere as dry deposition. Dry
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Name Lecturer Course Date Acid Rain Introduction Acid rain, also called acid deposition refers to the deposition of wet or dry acidic materials from the atmosphere on the surface of the earth (Hess, Darrel, and McKnight 172). Although in most cases Acid deposition is associated with rainfall, sometimes the acidic pollutants in the atmosphere can fall with hail, snow and sleet. Acid rain occurs when the oxides of various compounds dissolve in water in the atmosphere. One of the compounds supplying
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Violet or purple | The ninhydrin test is answered by amino acids and proteins. The formation of a complex called Rheumann’s purple due to condensation of two molecules of nin-hydrin with one molecule of ammonia from amino acid is responsible for the violet color. The -amino group is the reactive group | XANTHOPROTEIC REACTION To 5mL of the solution add 1mL of conc. HNO3. Boil the contents. After cooling ad excess 40% NaOH | On adding acid, yellow color will be noticed. When NaOH is added deep orange
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Part A: Conversions Fe2+ Concentration (M) Total Fe Concentration (M) SO42- Concentration (mM) 45.48 97.74 6.32 51.35 95.94 7.06 42.54 56.79 7.205 51.35 50.51 7.06 54.28 41.85 5.895 63.08 41.85 6.72 35.21 58.28 7.055 63.08 41.25 7.275 54.28 38.56 7.04 111.5 48.72 7.12 Given the above data set provided to us in the Excel file, it seems as though the most appropriate concentration conversion must be applied to the SO42- which is in millimolars while the Fe2+ and Fe concentrations
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FUNMAN The production of Orange juice. RAW MATERIALS NEEDED (1) Oranges. (2) Water. (3) Citric acid. (4) Vitamin C. (5) Sugar. (6) Antioxidant. FINISHED PRODUCTS (1) Orange Juice. The Means Of Transportation To Source Raw Materials (1) LAND TRANSPORT: It is the movement of goods, services and people from one place to another. This means of transportation is the way which I source my raw materials. It is through
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