Chemistry Laboratory 6A – Stoichiometric Analysis of an Iron-Copper Single Replacement Reaction Martin Sun Purpose The purposes of this experiment were to: determine the number of moles of iron reacted; determine the number of moles of copper produced; and calculate the ratio of moles of copper to moles of iron. Materials and Methods Materials and methods for this laboratory followed those laid out in Experiment 6A on pages 56-59 of Essential Experiments for Chemistry by Morrison and Scodellaro
Free Iron Chemical reaction Chemistry
Change in Potential Energy Worksheet 1. A 7.3 kg gallon paint can is lifted 1.78 meters vertically to a shelf. What is the change in potential energy of the paint can? 2. A roller coaster car of mass 465 kg rolls up a hill with a vertical height of 75 m from the ground. What is the change in potential energy relative to the ground? 3. If the car in problem #2 starts at rest from the height of 75 m‚ what will its speed be when it is 5 meters from the ground? What is the change in potential
Free Energy Potential energy Force
how does the US Economic indicators Effect the Copper Prices : A Quantitative Analysis abhishek jhunjhunwala Economic indicators have major role on the prices of the commodities. A quantitative analysis was done to construct a model to predict the future prices of the commodities. Nineteen economic indicators were considered for our study based on CME rating. The analysis was done on base metals & the results of aluminium are presented here
Premium Regression analysis Economics Macroeconomics
Simultaneous determination of copper‚ zinc and lead by adsorptive stripping voltammetry in the presence of Morin E. Shams a‚∗ ‚ A. Babaei b ‚ M. Soltaninezhad b a Institute for Advanced Studies in Basic Sciences‚ Zanjan 45195-159‚ Iran b Department of Chemistry‚ Arak University‚ Arak‚ Iran Received 24 November 2002; received in revised form 5 September 2003; accepted 15 September 2003 Abstract A sensitive and selective method for the simultaneous determination of copper‚ zinc and lead is presented
Premium Analytical chemistry Copper Lead
In all advanced electronic circuits‚ toxins and hazardous substance are utilized. [1] A smartphone is composed from over 1000 different materials [4]. This article takes a closer look at environmental problems associated with using tin‚ gold and copper for the production of smartphones. Tin is the main component of all solder points on a smartphone printed circuit boards. Most of the tin is produced in China and Indonesia. About one third of all tin production in the world comes from
Premium Mobile phone Strategic management Marketing
ch1 Student: _______________________________________________________________________________________ 1. xxWhich one of the following is a "substance" in the sense of the word as used in your textbook? A. B. C. D. E. air tap water sea water water toothpaste 2. Select the best statement. A. B. C. D. E. Physical changes may be reversed by changing the temperature. Physical changes alter the composition of the substances involved. Physical properties are not valid characteristics
Premium Temperature Energy Kinetic energy
Johnson’s plan for J.C.Penny failed‚ because of his ignorance towards people‚ strategy‚ and operations(Tuttle‚2013). Ron Johnson was very successful in his strategies with Apple Inc.‚ he was given credit for Apple’s retail store clean lines‚ and socializing bar‚ which helped Apple’s retail stores to get more customers. Johnson had similar strategy for J.C.Penney‚ he was not successful with JCPenney for changing the culture completely. Ron Johnson’s plan ignored the customers‚ no research was done
Premium
Determination of the Waters of Crystallisation/ Water of Hydration‚ In Hydrated copper (II) Sulphate Introduction In nature there are some salts that will have water in their crystalline structure. These salts are commonly known as hydrated salts. Hydrated Copper (II) sulphate is one of these‚ as suggested by the use of the word hydrated in its name. Its molecular structure is shown below. The water that is chemically combined into their structure is called the water of crystallisation.
Premium
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
Premium Thermodynamics Measurement Energy
UNIT CU1515-Introduction to communication in health‚ social care or children’s and young people’s settings. 1.1. Identify different reasons people communicate. A: People communicate for a variety of reasons. There are several different reasons why people communicate. People communicate each other to: express needs‚ share ideas‚ information‚ to express feelings‚ to give information and instructions. 1.2. Explain how effective communication affects all aspects of your own work. A:
Premium Communication Confidentiality Sociology