Investigation Investigate the amount of heat evolved when magnesium reacts with dilute acids. Planning What I am going to do I am going to find out how much heat is given out when magnesium reacts with a variety of dilute acids. In order to make comparisons between the acids‚ I shall use my results to work out how much heat would be given out if 1 mole of magnesium reacted with an excess of each acid. The acids I shall use are hydrochloric acid‚ sulphuric acid‚ nitric acid and ethanoic acid
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Techniques in Biotechnology. (1st ed. p.13) Nagar‚ New Dehli : Retrieved from Fankhauser‚ D. (2007). Spectrophotometer. Batavia‚ OH: University of Cincinnati Retrieved from Nasa. (2011). What Wavelength Goes With a Color?. O’Regan‚ B. (1996). Research Reports of the Link Energy Fellow Volume 11. (2nd ed.‚ p.90). Rochester‚ NY: University of Rochester Press. Retrieved from Roberts M‚ Reiss M‚ Monger G Stabler L‚ Metz‚ M‚ and Gier‚ P. (2009). Kaplan AP Biology.(1st ed.‚ p. 107). Stiles‚ W. (2006). Principles
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Abstract: This report presents the reason why the ocean does not freeze in the winter. Since the ocean consists of salt water‚ an experiment was done to test the effect of freezing on salt water compared to pure water. The experiment was conducted three times in order to obtain accurate results and eliminate errors. In addition to the salt and pure water experiment‚ a variation of this experiment was created to test other options. In the variation experiment the effect of freezing on sugar water
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Percentage Composition of Magnesium Oxide Aleshia Otieno Mr. Taylor SCH3U-01 Lab #4 Monday‚ November 17‚ 2014 Introduction Percentage composition is the percentage of a formula mass represented by each element. Percentage composition compares the mass of one part of a substance to the mass of the whole. The law of definite proportions states that a specific compound always contains the same amount of elements in fixed proportions by mass. By finding the percent composition of magnesium
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Electrophilic Aromatic Substitution Objective The objective of this experiment was to illustrate electrophilic aromatic substitution by synthesizing p-nitroanilide (as well as ortho) from acetanilide by nitration. The para form was separated from the ortho form based on solubility properties using recrystallization techniques. Synthetic equations: Physical Properties & Hazards of Reagents/Products: (all taken from Sigma-Aldrich website) Acetanilide MM = 135.16 g/mol Melting point =
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Laszlo Vass‚ Ed.D. Version 42-0027-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable
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IB Chemistry Experiment 4 Composition of a Post-1983 Penny Lab Report Background: Through the use of percent composition one can easily find out how much of a certain element is in a compound or an item such as a post-1983 penny. The experiment will be using HCl a strong acid to dissolve all the zinc inside the outer copper shell. The reaction follows as such; Zn+2HCLZnCl2+H2‚ but there will be no reaction with copper. The portion that will be measured is the mass of copper left after all of
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A formal report is a methodical presentation of a subject or an action which includes summaries of important points as well as appendices of tangential and secondary points. In simple words‚ a formal report is used to formally document the outcomes of an experiment‚ a design or an information which can provide the readers a clear understanding of why and how the experiment or action is done and what it concludes. Apart from readers understanding‚ a formal report is also prepared in order to record
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EXPERIMENT NO. 1 INTRODUCTION TO LAB INSTRUMENTS. 1. BREADBOARD We should be familiar to the following things about a breadboard: * What is a breadboard and what is it used for? * How does it work? * Setting Up. * Limitations. What is a breadboard and what is it used for? A breadboard (or protoboard) is usually a construction base for prototyping of electronics. The term "breadboard" is commonly used to refer to a solderless breadboard (plugboard). It was designed by
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recipe. Different things may account for this difference – food spillage prior to cooking‚ leaving it too long on the stove top‚ using the wrong measuring cup and so forth. The same thing can happen whenever we perform experiments in the chemistry lab to make a
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