An Investigation into the Factors Affecting the Rate of the Reaction between Calcium Carbonate and Hydrochloric Acid A chemical reaction is the process by which atoms or groups of atoms are redistributed‚ resulting in a change in the molecular composition of substances. The reaction rate is how quickly a reaction occurs and this can be affected by four different factors: ¡¤ changing the surface area of any solids involved ¡¤ changing the concentration of reactants in solution ¡¤ changing the temperature
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Area P Write down the aim of your Investigation. To investigate the effects of change in concentration on the rate of reaction between Sodium Thiosulphate and Hydrochloric Acid. Briefly describe your Preliminary Experiment and include your results. Explain how these results have helped you plan your main experiment (p8b). An increase in concentration will lead to an increase in the rate of reaction because there will be a greater number of particles per unit/cm3. The particles will be closer together
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P LANNING Aim: Our aim is to detect which factors affect the rate of the decomposition of hydrogen peroxide with a fixed mass of catalyst. A catalyst is a substance‚ which alters the speed‚ or rate of a chemical reaction but is chemically unchanged at the end of the reaction. The two factors that we can change are the temperature and the concentration. We chose to vary the concentration of hydrogen peroxide. The catalyst to speed up the reaction without affecting the result will be manganese
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3 LIBOR 7 9 10 Floating Rate Received 8 10 11 Fixed Rate Paid 8 8 8 Swap Differential 0 2 3 Net Dollar Amount Received (Based on a Notional Value of $50 Million) 0 1000000 1500000 b. Determine the dollar amount to be received (or paid) by the counterparty on this interest rate swap each year based on the forecasts of LIBOR assumed above. ANSWER: Year 1 = $0; Year 2 = $1‚000‚000 paid; Year 3 = $1‚500‚000 paid 2. Interest Rate Caps. Northbrook Bank purchases
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Introduction This study addresses the question of whether exchange rate changes have any significant and direct impact on trade balance. By examining the trade balances between one of the Asians country which is china and US countries for the sample period from 1977 to 2008‚ this study found that the role of exchange rate changes in initiating changes in the trade balances has been exaggerated. As such‚ an alternative explanation to the observed behavior of China trade balances in the selected sample
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saturation and a flow rate of 2 m3/s‚ and fresh air at -5 °C d.b.‚ 100% saturation with a flow rate of 0.5 m3/s. The mixed air is heated to 35 °C d.b. Identify each condition point and calculate the rate at which energy has to be supplied in kW. 5. Calculate the rate at which energy has to be supplied in kW when air is heated from 10 °C d.b.‚ 8 °C w.b. to 40 °C d.b. when the inlet air volume flow rate is 3 m3/s. Use the inlet specific volume to calculate the air mass flow rate. 6. A cooling
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To validate that Confidentiality is kept‚ this report will be referring to the child as Target Child (TC) following the Data Protection Act 1998 and Children Act 2004. The report is aimed at the the child at the practitioners Primary School Setting. When all four observations we conducted TC is 60 months. TC transferred form a Private School Setting and into a Main stream setting and started in January. TC lives at home with his Mother‚ Father and younger brother. TC has settled into the School and
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A REPORT ON INTERRELATIONSHIP BETWEEN FOREIGN EXCHANGE RATES‚ EQUITY MARKET AND COMMODTY MARKETS IN INDIA By Aniketh Jayanthi Enrollment Number: 11BSPHH010110
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Q. The low birth rates in Singapore are due mainly to the high costs of living. To what extent is it true? Introduction: Singapore is experiencing a low birth rate that is currently at ~1.29 TFR. This is below the replacement level of 2.1 and has been so for more than three decades (Singapore ’s Total Fertility Rate (TFR) increased from 1.20 in 2011 to 1.29 in 2012. This is according to the Population in Brief Report 2013 released by the National Population and Talent Division in the Prime Minister
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An investigation to compare the reaction rates between potato and hydrogen peroxide against liver and hydrogen peroxide through loss in mass. Background information: Catalase is an enzyme that is found in all cells. This means that it is an intracellular enzyme. And enzyme is a biological catalyst. A catalyst is some thing that speeds up a reaction without being changed itself. Because of this enzymes and catalysts can be used again and again. Enzymes are protein chains that have a primary‚ secondary
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