"Cation and amnion lab" Essays and Research Papers

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    Ionic Reaction Lab

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    Purpose: The purpose of the lab was to observe what happens when two ionic compounds are combined in a small area and to be able to record the type of precipitate that is formed. Background: An ionic compound is formed when ions “transfer‚” or lose or gain electrons. The ions in an ionic compound are held together by ionic bonds in a lattice shaped structured. They are packed tightly together to maximize the attraction between the ions. When two compounds are mixed together‚ they form a precipitate

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    Lab Report Chemistry Lab

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    Since the Grignard reagent can easily react with water‚ all glassware including the 25 ml round bottom flask‚ magnetic stir bar‚ 3 and 5 ml conical vial‚ 50 mL Erlenmeyer flask‚ claisen adapter‚ drying tube and 5 glass pasteur pipets were first added to a 250mL beaker and placed in the oven for 30 minutes.  After the completion of the thirty minutes‚ 0.150 g of shiny magnesium turnings and a stir bar was first added to the round bottom flask and the claisen adapter along with the drying tube packed

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    Lab report

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    Experiment 4: Qualitative Analysis of Cations and Precipitation Reactions The overall goal of experiment four was to determine the identity of unknown cations presented to the student. But in order to know the identity of these unknowns‚ in part 1‚ Ag+‚ Pb+‚ and Hg22+ were presented to the student in aqueous solutions and then precipitated through experimentation. In part 2‚ the same procedure was enacted to determine which substances precipitated through qualitative analysis. Solubility rules

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    Potassium Iodide Lab

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    Potassium Iodide Deionized Water Filter Paper Charcoal Matches Equipment- Clean dry spatula Small Beakers Glass stirring rod Ring stand Funnel Tweezers Bunsen Burner Small Test Tubes Safety- During this lab we are dealing with some dangerous chemical including Lead Nitrate‚ Potassium Iodide. In this lab you will need to be wearing safety goggles at all times and closed toed shoes and for people that have long hair they need to have it tied back because we will be using a bunsen burner. Also when handling

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    Chemistry Lab

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    light of blue wavelengths (4000 to 5000 Å) than white light‚ and so the solution looks blue. When ammonia is added to a solution of copper(II) cation‚ a deep blue color is formed immediately. The blue color is due to the complex. ion Cu(NH3)42+. Cu(H2O)42+ + 4NH3  Cu(NH3)42+ + 4H2O This complex ion‚ the tetraamminecopper(II) cation‚ has a square co-planar geometry also. The absorption spectrum of this complex ion in 0.05M ammonia is shown in Figure 1 as the solid line‚ B. In

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    Lab Report Chemistry Lab

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    Purpose: To find out the densities and to find out the name of the unknown metals. (Based on the extensive and intensive properties) Check up the words mass‚ volume‚ density‚ extensive properties‚ and intensive properties. Where do the units for mass and volume) come from and what do they mean? What is the density of distilled water? What is Archimedes principle? Does temperature affect the density of a solid? Liquid? Gas? Materials: Safety glasses‚ 10‚ 25 or 50 mL graduated cylinders

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    protein lab

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    sub=3&brch=63&sim=1094&cnt=1 (4 October 2012) Boyer‚ Rodney. 2012. Biochemistry Laboratory. Pentice Hall Publishers‚ New Jersey. Nelson‚ Cox. 2008. Leningher Principles of Biochemistry. Fifth edition. W. H Freeman and Company‚ New York. Nigam Aarti‚ Ayyahguri.2012. Archana Lab Manual in Biochemistry‚ Immunology and Biotechnology. Tata Mc Graw Hill Publishing Company. pHscale. Net‚ pKa and Ka‚ 2012. http://www.phscale.net/pka-ka.htm (13 October 2012). University of California‚ Department of Chemistry. 2011. Chemistry 2B Laboratory

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    Photosynthesis Lab Report

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    The starting material for this lab was the dialyzed sample (stored at -20ᵒ C) from the previous lab. The CM sephadex resin (taken in a 50 mL tube) was already made swollen using Buffer C (20 mM HEPES‚ pH 7.9; 1 mM EDTA; 50 mM KCl). The dialyzed sample was thawed to the room temperature and gently poured over the resin. The tube was capped and kept on a rocker at room temperature for 1 hour. The tube was then centrifuged in a HS-4 rotor at 2500 rpm (1200g) for 5 minutes at 4ᵒ C. Supernatant was discarded

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    Lab Report

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    __¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬__ 15. Ions are atoms that have (pick one): gained or lost; shared one or more electrons into or form their valence shells. 16. A cation is an atom that has (gained or lost) an electron. (Pick one) 17. An anion is an atom that has (gained or lost) an electron (Pick one) 18. When a cation bonds with an anion‚ that bond is referred to as a/an _ionic_ bond. 19. Circle the molecules that are classified as compounds (H‚ H2‚ H2O‚ C6H12O6‚ N2) 20. Find the name

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    Oganic Lab

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    correct choice for each question. Answer all questions on the Scantron sheet by filling in the proper bubble with a #2 pencil. If you change an answer‚ erase the undesired mark thoroughly. Be sure to fill in the boxes for your student number‚ name and lab section; then correctly fill in the corresponding bubbles beneath them. A periodic table and other useful information are attached to the back of the exam. There are 4 exam pages and 26 questions. Check to be sure you have answered them all! 1. (zero

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