Based on the chemical equation, zinc iodide is expected to precipitate from the reaction, and the precipitate is subjected to washing procedure to collect the excess reactants, which are also weighed Sheppard, 1. In the beginning the color is dark brown. The purpose of this article is to discuss two colorful reactions not widely used by chemical educators in high schools or college chemistry laboratories: The synthesis of zinc iodide from its elements, zinc and iodine, and the subsequent decomposition of zinc iodide back into its elements. Bacteria, Enterobacteriaceae, Escherichia coli 1587 Words 6 Pages Title: Redox Reactions Research Question: Is it possible to determine if a redox reaction took place by using only the equation? Short reports are usually less formal and less complex in structure than long reports. Procedure Synthesis of zinc iodide a Measure out 5 cm 3 of ethanol using a measuring cylinder. Chemical kinetics, Chemical reaction, Liquid 759 Words 4 Pages anthracene from benzyltriphenylphosphonium chloride and 9-anthraldehyde through the reaction mechanism recognized as the Wittig Reaction.
More specifically, the solubility properties of these halogens will be used to predict their reactions. Mass a beaker and record 4. It is also called Bonazen. The table of contents Page i should include the following: all headings subheadings appendices attachments page numbers. © Nuffield Foundation and the Royal Society of Chemistry Page last updated October 2015 This is a resource from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry. Kinesthetic James can adapt Kinesthetic learning strategy by asking students to use similes, metaphors and symbols in their daily conversations.
Download file to see previous pages This paper details the results of an experiment to produce zinc iodide from the reaction of zinc with iodine, making use of the laboratory setup given to investigate aspects of the reaction relating to the conservation of mass, the identification of the limiting reagent, and the observations on the physical characteristics of the solution as it underwent the reaction Spatafora, 2010; Nuffield Foundation, 2013. Which type of compound usually has higher melting points, ionic compounds or covalent compounds? This was done through five chemical reactions involving copper. . We heated the substance again to remove any excess water. As you progress further in science, you will see variations in styles of lab reports, though they all contain the same basic principles. As a student, you will be asked to write reports to show that you have investigated or researched a particular problem. Figure and table titles may be single spaced.
Be careful to insure that the page numbers of the sections are properly represented in the table of contents. All chemical reactions have an energy barrier to overcome before the reaction will proceed. Must be included in the body of the report after being referenced in the text. Fill pipet with 3ml of distilled water 3. Use 12 point Times New Roman Font.
Lab reports are to be computer-generated and double-spaced. In the second experiment, students are asked to identify a white precipitate that forms during a synthesis of zinc iodide from its elements when a specific reagent, acetic acid, is not used. Zinc is a metallic element which is an essential product required by our body. It reacts and dissolves, giving off a colourless gas hydrogen. Students utilize stoichiometry, barometric pressure calculations, the ideal gas law, and a variety of chemical techniques, such as the collection of a gas over water, to solve this problem.
Hypothesis: Yes, I believe it is possible to determine if this reaction took place by using the oxidation numbers in the equation. To examine a variety of reactions including precipitation, acid-base, gas forming, and oxidation-reduction reactions. The report is due at the beginning of Lab 11 Cell. Synthesis Scenario Auditory James should use Socratic learning method, where he should ask his what they know about symbolism, metaphor and simile. Visual Visual tools can enhance and aid James in teaching, as then he can invite the students to participate in the lecture, which would keep them alert to the auditory environment as well. T Empirical Formula of Magnesium Oxide: Lab Report The objective of the experiment is to determine the empirical formula of Magnesium Oxide through a procedure of heating magnesium ribbon to react with oxygen to form a magnesium oxide compound with the correct ratio of atoms within each element; 1:1. All sections of the report must be written in paragraph form.
Both students are involved in sports that require physical activity. A sample title page is provided in section 3. This is the question I posed before starting the experiment. Fill out the report below, insert your digital photographs into the report, and submit it me electronically. Zinc carbonate: It is also called carbonic acid and zinc spar.
To test this you will be checking the melting point, solubility, and conductivity of various substances. Surface adsorption happens when impurities present in the mixture are adsorbed during precipitation. This test is used to distinguish starch polysaccharide from carbohydrates. Procedure Procedure Materials 2 tin-oxide coated pieces of glass, 2 crocodile clips, Potassium iodide solution, Multi-meter, Hot plate, Bunsen burner, Titanium oxide TiO2 paste, tape. The body shows sections with headings which report the findings of the research undertaken.
Acid, Acid dissociation constant, Buffer solution 806 Words 6 Pages Lab Report: Halogen Reactions Purpose: This experiment will allow for exploration into some of the properties of Group 17 elements halogens and their compounds. Experiment, Laboratory, Logic 1036 Words 4 Pages lab reports becca Medina Biology Lab 1107 Lab Notebook The Scientific Method Problem: Will a male or female have a higher heart rate after participating in the physical activity of running up three floors of a building? The physical characteristics of the solution of zinc and iodine were observed and noted, especially with regard to the changing colors of the solution as the reaction progressed. Therefore, the combined mass of the beaker and Zinc was 60. The calculations of a stoichiometry problem depend upon balanced chemical equations. James must draw as much information from them as possible, filling gaps with his own expertise. The reaction can be easily reversed using electrolysis to decompose the compound back into its elements.
Hypothesis: We believe that the male would have a lower heart rate after running up the stairs determining that he is in better shape. Be sure report graphics print from a computer other than the one where it was created. Research results are considered qualitative when the results can be answered with a simple statement of yes or no. Being in the group of transition. Written for a particular purpose, they usually outline a problem, provide the relevant facts and ideas related to the situation, and then recommend a course of action. Part 1: Find the Volume of One Drop of Solution 2.