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    Lab Report

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    Joe Schmoe Period 3 March 8‚ 2013 Lab Report: Empirical Formula of Zinc Chloride (ZnCl) * Purpose The purpose of this experiment was to learn how to determine the empirical formula. Empirical means “based on experimental evidence.” * Experimental Design The reaction that occurred was the reaction of the elements Zinc (Zn) and Chloride (Cl) by mixing a piece(s) of Zinc and 50mL of Hydrochloric Acid (HCl). The amount of Zinc was determined to be between 1.00g and 1.25g. As the reaction

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    Lab Report 1: Natural Selection Introduction: In today’s lab we learned how natural selection and survival of the fitness took place in Darwin theory by testing it out with four different utensils which were Spoon‚ Fork‚ chopstick‚ and clothespin which represent the four different types of bird beaks. Our goal was to see which one utensil ( bird beak) would outcome the other four utensil ( bird beak) by being able to survive with the limit amount of food‚ the environmental chances‚ and see who

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    Procedure 2: DNA Extraction from Cheek Cells Materials: Water‚ Clear Dish Soap‚ Table Salt‚ Isopropyl Alcohol (70%) or Ethanol‚ Food Coloring 1. To 200 Ml drinking water add two teaspoons of salt 2. Gargle the salt water for 1 minute. 3. Spit the gargled water into a beaker (or new cup). Now your cheek cells are suspended in the salt water. 4. Gently stir the salt water with one drop of soap (try to avoid air bubbles) 5. In a separate beaker (or cup)‚ mix 20 ml isopropyl alcohol and 1-3 drops

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    The purpose of this experiment was to acquaint the students with basic laboratory procedures‚ methods‚ and techniques; to introduce the use of basic laboratory measuring devices; to demonstrate different methods of manipulation of numerical quantities. DENSITY AND SPECIFIC GRAVITY Materials and Methods Part 1: Density of an Unknown Solid 1. We first were asked from our laboratory instructor to attain an unknown solid and were asked to note down the number of the solid. 2. Determine

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    is the capacitative reactance‚ R is the resistance‚ and ω = 2π f ( f is the linear frequency). Apparatus • PC with DataStudio installed • Science Workshop 750 USB Interface Box • Power Amplifier • Voltage Sensor • AC/DC Electronics Lab Board • LCR meter • Connecting patch cords Experimental Procedure The experimental procedure can be divided into three parts: Part I: Using a Frequency Scan to Determine the Resonance Frequency • The first

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    Osmosis Lab Report

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    Osmosis The purpose of this lab is to study how membranes of plant and animal cells react when exposed to different solutions. The first experiment involves purple onion skin and the second involves rat blood in various solutions. I needed to understand certain terms before preforming this lab to be able to efficiently explain what is happening to the cells. Diffusion is the tendency of a substance to move down its concentration gradient from a more concentrated to a less concentrated area.

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    Red Onion Cell Lab

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    01) The Cell Structure and function Abstract In this lab the structures of various cells were viewed through a compound microscope. The bacteria in yogurt was viewed a long with a slice of potato‚ and a thin skin of red onion. The potato was dyed with iodine while the red onion was dyed with methane blue. The students had to assemble the first three slides. Two more slides were provided these are the yeast and protozoa cells. Those two are also viewed

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    Example lab report of Synthesis of potassium tris (oxalato) ferrate (III) trihydrate Posted by Nurul Yunaliyana Experiment 5: Synthesis of potassium tris (oxalato) ferrate (III) trihydrate  Purpose:  to synthesis potassium tris (oxalato) ferrate (III) trihydrate ‚K3 [Fe (C2O4)3].3H2O. Introduction:  Ferrous ammonium sulfate‚ Fe(NH4)2(SO4)2.6H2O is dissolved in a slightly acid solution‚ excess oxalic acid‚ H2C2O4‚ is added and the following reaction takes place: Fe(NH4)2(SO4)2.6H2O + H2C3O4

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    References: a) http://en.wikipedia.org/wiki/Reynolds_number b) http://www.engineeringtoolbox.com/reynolds-number-d_237.html c) http://www.engineeringtoolbox.com/laminar-transitional-turbulent-flow-d_577.html d) http://www.slashdocs.com/prqt/lab-report-osbourne-reynolds-apparatus.html APPENDIX The Reynolds Apparatus that was used during the experiment.

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    solutions of each substance were sterilized by passing them through a 0.22 μm (Nupore Filtration Systems‚ UP‚ India) filter. The actively growing cell suspension was treated with elicitors and precursor indiviually on the day of inoculation. The effect of elicitors (ABA‚ SNP‚ SA‚ and MeJA) and precursor (Phenylalnine) on stimulation of anthocyanin in the cell suspension cultures of D. carota was studied at various concentrations viz. 10‚ 50‚ 100‚ 200 μM and phenylalanine viz. 0.5‚ 1 and 5 mM.The samples

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