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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Developmentally Appropriate Practice (DAP) refers to developing a framework for providing children experiences and activities that are age‚ individually‚ as well as socially and culturally appropriate (NAEYC‚ 2009). There are specific benchmarks that students are “supposed” to reach at each age group and level. Beginning at birth we have expectations on our children as to what they are supposed to be doing and when. These expectations being met‚ are how we determine if our students are on target
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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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American Obesity Rises The obesity rate in America has increased tremendously within the past 20 plus years. People have become more comfortable being heavier than the average. Society tries to enforce the idea of “slim” being “in”‚ while somehow contradicting itself by saying being comfortable in your own skin. The obesity rate in America has increased because of cultural changes‚ lifestyle habits‚ and genetics. Over the past 20 years‚ American culture has changed as a whole. Working men and
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Rate of Osmosis vs Solute Concentration Introduction: In nature‚ the quest to reach equilibrium‚ or the state of rest or balance due to the equal action of opposing forces (http://www.dictionary.com). Osmosis and diffusion are two ways that cells reach this equilibrium‚ without exerting energy. Due to the unique nature of the phospholipid bilayer‚ small molecules can pass through the semipermeable membrane easily‚ through diffusion (https://www.biologycorner.com). Water‚ however‚ has a slightly more
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Choosing an Appropriate Forecasting Model Forecasting is done by monitoring changes that occur over time and projecting into the future. Forecasting is commonly used in both the for-profit and not-for-profit sectors of the economy. There are two common approaches to forecasting: qualitative and quantitative. Qualitative forecasting methods are especially important when historical data are unavailable. Qualitative forecasting methods are considered to be highly subjective and judgmental. Quantitative
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Bureaucracy is No Longer Appropriate Today Introduction Bureaucracy‚ first proposed by Weber‚ was once considered as the best form of administration‚ coordination and control (Stazyk and Goerdel 2011). It was generally adopted by many large social organizations and gradually became their mode of administration (Adler 1999). During the initial period of bureaucracy‚ it made great contribution to the proper organizing of large social or corporate system through specialization of roles‚ standardization
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might the return of almost 10% of the Canadian population to Canada and civilian life have on Canada‚ both socially and economically? Just after the Great Depression‚ those who were enlisted for fighting in World War Two were approximately overseas for nearly six years. Six years is long enough to create some sort of effect/impact upon return to their homeland. In terms of economic impacts; many of those who had left to fight had to leave their jobs‚ if they had one. After their return‚ it wasn’t
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The first week of my Boeing Internship is a busy one. I have attended two of the three Marriot Boeing events. It was an incredible experience. I took fond of the stories of important Boeing employees’ mistakes. I also found interest in the poster session—specifically the augmented reality device. As the weeks went on‚ I have attended the Satellite 101 Training‚ met an astronaut‚ took a tour around the Boeing campus‚ took a tour around the Chemistry Laboratory at Huntington Beach and many more activities
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Accident rates- country and Bangalore/karntaka- comparison Motivational video -1 min Death by accidents Role model- construct/find data No. of cases booked in a year Policy – divide into3 month periods – top 3 scorers in max periods will be promoted during promotion. And the tope three scorers each month get a bonus and flag – pride‚ growth Topper’s club – national level meetings Annual conference on showcasing the best achievement Who are we? The Bangalore Traffic Police What do we do
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