Rates of Reaction Coursework Aim: To find out how different concentrations of sodium thiosulphate (Na S2 O3) affects the speed of its reaction with Hydrochloric acid (HCL). Introduction When Sodium Thiosulphate and Hydrochloric acid react they produce a cloudy precipitate. Both of the chemicals are clear solutions and they react together to form a yellow precipitate of sulphur‚ the equation for this reaction is: Na2 S2 O3 + HCL‚ H2 O + NaCL + SO2 + S Sodium Thiosulphate + Hydrochloric
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The argument here would be that both these practises are also a form of assisted suicide because at the end of the day they all serve the same function of helping the patient end his life. The worst thing is that compared to assisted suicide which gives the patient freedom
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Aim: To determine the effect of altering concentration (mol dm-3) of hydrochloric acid (HCl) on the rate of reaction (mol dm-3 s-1) for the following chemical reaction: CaCO3(s) + HCl(aq) CaCl2(s) + H2O(l) + CO2(g) Research question: How does altering concentration (mol dm-3) of hydrochloric acid (HCl) affect the rate of reaction (g/s) for the following reaction: CaCO3(s) + HCl(aq) CaCl2(s) + H2O(l) + CO2(g) Background information: The reaction between calcium carbonate and hydrochloric acid
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experiment is to determine the rate law and the activation energy for the reaction between persulfate ion‚ S2O82-‚ and iodide ion‚ I-: S2O82-(aq) + 2 I-(aq) 2 SO42-(aq) + I2(aq) The rate law can be written as Reaction rate = (1) Where m and n are the orders with respect to S2O82- and I-‚ respectively‚ and k is the rate constant. Determining the rate law involves determining the values of m and n. The temperature dependence of the rate constant is given by (2)
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UNIVERSITY OF MARYLAND CENTER FOR ADVANCED STUDY OF LANGUAGE What makes listening difficult? Factors affecting second language listening comprehension Amber Bloomfield‚ PhD Sarah C. Wayland‚ PhD Purpose—To establish what is currently known about factors that affect foreign language listening comprehension‚ with a focus on characteristics of the listener‚ passage‚ and testing conditions. Elizabeth Rhoades‚ MA Allison Blodgett‚ PhD Conclusions—Research on second language (L2) listening
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Sahiry Fragoso Mathews ENGL 1311L-03 20 March 2013 Legalization of Marijuana The use and existence of Marijuana is not something new for anyone. Marijuana has been used in several ways for over many years. Marijuana has always being around‚ but why is it that suddenly people started to care about Marijuana? Now that the places where Marijuana is legal are increasing‚ people have started to think about whether the legalization of Marijuana is good or bad. The Cannabis plant‚ which is where
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The purpose of this practical is to investigate how the pulse rate of humans changes when they exercise. Someone who is physically fit can supply their muscles with enough blood‚ carrying glucose and oxygen‚ for an activity at a lower heart and breathing rate. The fitter you are the lower your resting heart rate. You and your classmates will be the humans investigated. SAFETY: If you know you have any condition that affects you doing exercise‚ please make sure your teacher knows before you start
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Thesis statement: Even though many would argue that social media is a positive outlet that allows individuals to express themselves to their peers‚ some would dispute that instead social media decreases literacy and education‚ brings about negative self-esteem and body image‚ and also encourages narcissistic behavior which can lead to harassment and bullying. I. Decreases literacy and education A. The use of cyber-slang is not only being used online when talking with friends and peers but also in
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Legal Crime vs Natural Crime The natural definition of crime is any act that is seen as fundamentally wrong‚ strongly disapproved‚ and deserving of punishment”‚ regardless of whether it is legal. Natural crime is one that is mala in se‚ or wrong in itself. Meaning that is wrong to do regardless of your circumstances. Natural crime presumes a common morality that society agrees that everyone should behave the same way towards certain areas. It is also based on the principle that within most religions
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James Alexander November 27 2011 PHI-105 Professor Sanejo Leonard Should Euthanasia and Assisted Suicide be Legalized? Euthanasia and Assisted Suicide should become legal in the United States and all US territories. Though Euthanasia and Assisted Suicide are not the same and are separate acts‚ they both serve the same purpose‚ which is to follow the desire of a person with terminal illness to end their life without legal consequences. This same right should extend to family members and guardians
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