PPE is a vital part to an investigation; not only for preserving the crime scene but also ensuring the safety of the forensic scientist. PPE comes in all shapes and forms‚ ranging from latex or nitrile gloves‚bubble suits‚ face masks‚ eye protection etc. In this lab‚ the group investigated the living room where a suspected stabbing occurred (living room 1). The PPE required for this investigation included: latex gloves‚ disposable filter masks‚ and shoe covers. Each piece of PPE was significant to
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of reaction with respect to [H2O2] and [2I-]. I aim to find out the activation enthalpy of the reaction by finding the rate of reaction at different temperatures using the Arrhenius Equation. The experiment will go as follows: Into a conical flask put 15cm3 of distilled water and add 2cm3 of [X]moldm-3 potassium iodide (KI) solution and 1cm3 of 2moldm-3 sulphuric acid. Then add to this 2.5cm3 of 5vol (0.42moldm-3) hydrogen peroxide (H2O2). For the second part of my investigation‚ the
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In this lab experiment‚ we used sodium bicarbonate to influence photosynthesis. Sodium bicarbonate is a formula of NaHCO3 (baking soda). In this lab experiment‚ we observed photosynthesis in spinach leave and investigated the effect of sodium bicarbonate on photosynthesis. The experiment was to determine how many disks of spinach leaves float at the end of every ten minutes. Our main focused and question was how using different amount of concentration of sodium bicarbonate would affect the process
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T DNA IN CRIMINAL INVESTIGATION 5Transportation and storage of DNA evidence is also extremely important. Whentransporting DNA evidence the officer should be aware that having the evidence in directsunlight can cause the evidence to become compromised (DNA Evidence‚ 2012). The officershould ensure that they do not place the evidence in an environment where it can get hot‚ insteadthey should place it in a cold environment to preserve it (DNA Evidence‚ 2012). It is importantthat the DNA evidence be
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TRANSPIRATION: Investigation 11 Learning Objectives: To investigate the relationship among leaf surface area‚ number of stomata‚ and the rate of transpiration To design and conduct an experiment to explore other factors‚ including different environmental variables‚ on the rate of transpiration To investigate the relationship between the structure of vascular tissues (xylem and phloem) and their functions in transporting water and nutrients in plants Before doing this laboratory you should understand:
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The principle’s to a criminal investigation The principle’s to a criminal investigation prof. gloria reeves | Unit 9 Assignment prof. gloria reeves | Unit 9 Assignment By: kendra kelley CM107-COLLEGE COMPOSTION By: kendra kelley CM107-COLLEGE COMPOSTION 2012 2012 A student of criminal investigation needs to know and understand the four main principles of any criminal investigation. The student of criminal investigation also need to know how and when to apply the principles. The principles
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RUNNING HEADER: CRIMINAL INVESTIGATION 1 Criminal Investigation Tracy Kelly Kaplan University CJ210-05 November 24‚ 2011 Professor Ron Reinhardt CRIMINIAL INVESTIGATION 2 Criminal Investigation Criminal investigation as defined by Encyclopedia Britannica (2011) is an “ensemble of methods by which crimes are studied and criminals apprehended.” The methods used determine the success or failure of solving a case. Any method of inquiry should be able to answer who‚ what‚
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Standardization of hydrochloric acid by sodium carbonate Concentrated hydrochloric acid is roughly 11 M. Pour out into a measuring cylinder about 2 cm3 of concentrated hydrochloric acid. Transfer it to a 250 cm3 flask and make up to the mark with water. Shake well. Put some pure sodium hydrogen carbonate or anhydrous sodium carbonate into an evaporating dish and heat gently over a low flame for about fifteen minutes‚ stirring continuously. Take care not to heat the mass too strongly or fusion
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Calculating the Enthalpy Change of Reaction for the Displacement Reaction between Zinc and Aqueous Copper Sulphate Data Collection and Processing Observations: * Drops of water left on the inside of the measuring cylinder * Hole in the lid‚ possible escape route for gas or splash-back * The polystyrene cup felt warm during the reaction By extrapolating the graph we can estimate what the rise in temperature would have been if the reaction had taken place instantaneously. I can
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Andrea Aganetti Registration Number: 201351933 DESIGN METHODS FOR SYSTEMS INTEGRATION A State Of The Art Investigation “I declare that this submission is entirely my own original work. I declare that‚ except where fully reference direct quotations have been included‚ no aspect of this submission has been copied from any other source. I declare that all other works cited in this submission have been appropriately referenced. I understand that any act of Academic Dishonesty such as plagiarism
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