Determination of a Rate Law Megan Gilleland 10.11.2012 Dr. Charles J. Horn Abstract: This two part experiment is designed to determine the rate law of the following reaction‚ 2I-(aq) + H2O2(aq) + 2H+I2(aq) + 2H2O(L)‚ and to then determine if a change in temperature has an effect on that rate of this reaction. It was found that the reaction rate=k[I-]^1[H2O2+]^1‚ and the experimental activation energy is 60.62 KJ/mol. Introduction The rate of a chemical reaction often
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Ideal Gas Law Lab 1. Procedure: First‚ we used a balance to weigh the canister of gas‚ and recorded that mass as the original weight. Then‚ we filled a large bucket with water and recorded the temperature. We then filled a small test tube with water at the same temperature and poured that water into a graduated cylinder to measure the original volume of water in the tube. We then poured the water back into the test tube and placed the tube into the bucket with the opening upwards‚ turning the
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HOMEWORK PROBLEMS Chapter 4: THE LAWS OF MOTION PART-A: Hand in your answers in class on scantron on Wednesday 22 September-2010. The questions have been numbered so you can use the back side of an older scantron. Write your name‚ class (1401) and HW # 4 on the scantron. 1. A horizontal force of 95.0 N is applied to a 60.0-kg crate on a rough‚ level surface. If the crate accelerates at 1.20 m/s2‚ what is the magnitude of the force of kinetic friction acting on the crate? (a) 23.0 N (b) 45.0 N
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BCA- I Physics Assignment 1 Unit I Laws of Motion 1. A man of mass 70kg stands on a weighing machine in a lift which is moving (a) upwards with a uniform speed of 10m/s. (a) downwards with a uniform acceleration of 5m/s2 . (a) upwards with a uniform acceleration of 5m/s2. What would be the readings in each case? (d)what would be the reading if lift mechanism failed and it hurtled down freely under gravity? 2. A shell of mass 0.2kg is fired by
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how about who made the three laws of motion known. Well if so you are about to find out. His name was Isaac Newton and he was a great English physicist and mathematician. First‚ Growing up Newton had a difficult life. He was born as a premature baby. He also had to grow up without his dad because his dad passed away three months before he was born. When Newton was three his mom left him to go live with her new husband‚ leaving him to live with his grandparents. Newton has many influences on today’s
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Isaac Newton Isaac Newton was born on December 25‚ 1642‚ in Woolsthorpe‚ England. His father died before he was born‚ and his mother mother‚ Hannah Newton‚ remarried and moved away. She left Newton to be raised by his uncle. In 1654‚ he was sent to the local grammar school‚ then he enrolled at Trinity College‚ at the University of Cambridge‚ in 1661. He received his bachelor of arts in 1665‚ and was named a fellow of the College two years later. In 1666‚ Newton made three of his greatest discoveries
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Tori Suchy Physical Science Honors 1st block October 4‚ 2012 Balloon Powered Car Problem: In order to create a race car that can travel a minimum of eight meters powered by a nine inch balloon. We need incorporate Newton ’s Law of Motion including speed‚ velocity‚ and acceleration. Hypothesis: If a car were to be made out of homemade materials‚ then it would be possible for it to travel 8 meters powered by a nine inch balloon. Independent Variable: building the car from homemade materials
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Physics 211 Experiment #4 Newton’s Second Law – Atwood’s Machine Newton’s second law (FNET = ma) can be experimentally tested with an apparatus known as an “Atwood’s Machine” (See Figure 1.) Two weights of unequal mass‚ connected by a thread‚ are draped over a pulley‚ as shown in the figure. When released‚ the larger mass accelerates downward and the smaller one accelerates upward. Figure (1a): The Atwood’s Machine‚ showing the pulley and the two masses after a run. Figure (1b): A close
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Motion of the Cars In this part of the experiment‚ we are trying to figure out how fast each of the cars are moving using our own measurements. We are also asked to make a mathematical equation that describes the motion. What we plan to do is use 2 meter long meter stick to measure the distance of the cars and record the position at each time interval. After that an average velocity can be found. After we used the average velocity‚ we were able to put it into the equation of a line formula and
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sole purpose of applying the law of conservation of momentum. Is this true? I also would like to note that a graph could not be drawn in some situations again due to me lacking the technology to send photos of handwritten notes. Hence there is sadly no examples of a problem for translational equilibrium and for the force-time graph in which impulse can be identified. I also have referred to explosions as divisions. Is this appropriate? Newton’s First Law of Motion: A body will remain
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