Abstract This experiment is to study the effect of temperature on the rate of reaction between potassium permanganate with oxalic acid. We used 2cm3 of 0.02M potassium permanganate and 4cm3 of 1M sulphuric acid into a test tube. In another test tube‚ we placed 2cm3 of oxalic acid. We placed the test tubes in a water bath at 40‚ 45‚ 50‚ 55 and 60oC respectively. When the solutions have attained these temperatures pour the oxalic acid into the acidified permanganate solution and recorded the time
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Crucial to any criminal investigation is information provided by witnesses & victims of crime. * Information is the lifeblood of investigations and it is the ability of investigators to obtain useful & accurate information from witnesses that is most crucial. * Police officers are tasked with the gathering of witness/victim info by way of an interview. * Thus‚ an officer’s ability to conduct an effective interview is a significant component of any investigation & one which is
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2. The Criminal investigation Process Police powers You should be mindful of the fact that the exercise of police authority is regulated. The main police powers are defined by statutes including the: Law Enforcement (Powers and Responsibilities.) Act 2002. (LEPRA) and the Bail Act. 1978 NSW Police powers include: 1. The power to arrest (discussed in more detail below). 2. The power to issue cautions‚ warnings and infringement notices in relation to minor offences. 3. The right to obtain
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Research An investigation into work engagement Contents Executive Summary……………………………………………....................... 3 Introduction…………………………………………………….……………... 4 The company…………………………………………………………….………………… 4 Issues……………………………………………………………………………………….. 4 Goals of the report……………………………………………………….............................. 4 Research ethics……………………………………………………………………………... 5 Literature review……………………………………………………………… 6 Methodology…………………………………………………………………
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Contents 01. – The importance of site investigation Page 2 – 4 1.02 – Trial Pits Page 4 1.03 – Auger holes Page 4 – 5 1.04 – Boreholes Page 5 – 7 1.05 – Soil sampling Page 7 1.06 – In-situ testing Page 8 1.07 – Quasi-static cone penetration testing Page 8 – 9 1.08 – Dynamic probing Page 10 1.09 – The Standard Penetration Test Page 11 1.10 – Field vane test Page 12 1.11 – Classifications of Soils Page 13 1.12 – Size range of grains Page 13 – 14 2.00 –
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Methods of Social Investigation Emma Woodmansee ’Describe how you would plan and undertake an investigation into why some of this College’s students do not complete their degree courses.’ (You have been given only 100 to finance the study; and one term’s sabbatical.) Define the variables in the given title After a Research Statement has been formulated it is very important that the researcher defines any variables within it. A variable is any word whose meaning may be ambiguous or which could
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Heart rate investigation Research statement: To investigate‚ how diabetes affect a person’s heart rate during physical exercise. Background information: Heart rate : Heart rate is the number of time a persons heartbeats per unit of time‚ usually measured in BPM (beats per minute). Heart rate is measured by finding the pulse on body‚ usually taken from carotid artery‚ which supplies blood to the head and the neck and radial artery‚ which Is located on your wrist below your thumb
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Abstract Cold case investigation is a growing concern due to increased numbers of unsolved cases and pop culture appeal. This paper will walk you through what a cold case investigation is‚ how one begins‚ and factors such as the use of volunteers can effect the outcome of a cold case investigation. Each year the number of unsolved cases in the U.S. goes up‚ but with limiting funding and lack of manning something has to be done to keep the numbers down. A dedicated cold case unit is the best answer
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complex reactions and reaction sequences‚ where raw materials react together to give the product. Such chemical process often releases energy‚ in the form of heat‚ and the reaction is described as exothermic. Many of these reactions may also evolve gases at high rates‚ and could cause reactor over-pressure. Thermal runaway reaction Runaway reactions are thermally unstable reactions where the heat of reaction can raise the temperature of the reactants sufficiently to accelerate the reaction rate out
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Preliminary Investigation: Aim: To investigate the main problems with my main experiment and to see how to resolve these. Preliminary Method: 1. Setup Equipment 2. Make Circuit with the set length of wire 3. Draw Results table 4. Record Results 5. Change the lengths of wire and do same steps 2 more times. Preliminary Equipment: Metre Ruler Metre length Of wire Voltmeter Ammeter Power Unit Sellotape Paper‚ Pencil Preliminary Diagram: Preliminary Investigation: I
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