Goal(s): To study the effect of concentration on the rate of a reaction‚ and to find the order of the reaction in each reactant and write a rate equation. Background Theory: Chemical reactions occur at different rates that ultimately depend on their concentration‚ the temperature‚ the usage of catalysts‚ the nature of reactants‚ like the surface area of the particles. Concentration‚ for instance‚ increases the number of molecules or particles in a certain volume‚ so collisions will become more
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De La Salle University – Manila Research Study: Income and Consumption on Rice of Filipino Families A Research Paper presented to The Faculty of the Decision Sciences and Innovation Department Ramon V. del Rosario College of Business In Partial Fulfillment of the Requirements in Basic Research Methodology (BASIREC) Submitted to: Professor Eula Villar Submitted By: Ku‚ Marian Joyce Camille Torres‚ Bienvenido Uy‚ Anika Michelle December 2012 Acknowledgements The researchers
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not exist (Lab Manual 3 pg. 1). They help in many different ways that are useful to the body of living organisms. Enzyme are used to speed up chemical reactions (Lab Manual 3 pg. 1). Through this process‚ they are considered very unique because they are not altered or consumed within the reaction (Lab Manual 3 pg. 1). This is why enzymes are considered biological catalysts. They also do not alter the equilibrium of a chemical reaction nor the amount of free energy that is released (Lab Manual 3 pg
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the following formula: mean blood pressure (MBP) = 2/3 (diastolic pressure) + 1/3 (systolic pressure). Cardiac output (OP) was then calculated by using the formula: (CO) = stroke volume (SV) x heart rate (HR). Stroke volume could not be found in the lab‚ therefore‚ we used a standard set of experimental purposes: If the student’s weight was less than 150 lbs.‚ then the SV= 0.070 L/beat at rest and SV= 0.100 L/beat after light exercise. If the student’s weight was over 150 lbs. then the SV= 0.085 L/beat
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The different methods of measuring acids and bases in a solution By Starsky Intro to Biology September 26‚ 2011 Lab Partners: Kristen‚ Tania and Betty Introduction When using different methods to measure pH levels there are some tools that can be useful. Some more than others but by putting into action the different methods it may determine which tools will work best and give the best
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couple of key things about lab safety and procedure during this experiment. While working with the hot plates‚ I learned to pay a lot of attention to whether or not the hot plate was plugged in or turned on‚ as well as whether or not the wax was getting too hot. Measuring each substance into the cup was an important experience because it taught me to be deliberate and careful when measuring so as to not waste materials‚ making sure we did not have to start over. While this lab is a good starting point
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The properties of dibenzalacetone make it a great substance to be used when protecting the skin from the sun. In the experiment performed‚ dibenzalacetone was created from an aldol condensation of 2 portions of benzaldehyde and acetone in sodium hydroxide. The reaction that occurred in this experiment is known as a specific aldol condensation called Claisen-Schmidt. In the reaction‚ the carbonyl of benzaldehyde reacts quickly with the acetone anion to create a hydroxyketone that dehydrates in the
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major habitat. They can be found over range of continents and have common characteristics with plants and animals. There are many types of Biomes on earth. BIomes are distinct from habitats‚ because any biome can comprise a variety of habitats. In our lab we had figure out the major components in a biome. For example‚ like the weather‚ what animals live in it‚ plant life‚ etc… And answer key questions to why something happens in a Biome. And how species and plant life depend on each other to survive
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multinuclear (1H‚ 13C‚ 119Sn) NMR spectroscopy‚ FT-IR‚ X-ray powder diffraction and theoretical calculations. On the basis of these techniques‚ it is proposed that the ligands are bounded to the tin atom through the azomethine nitrogen and carboxylate oxygen. The data reveal that triorganotin(IV) complexes have penta-coordination with trigonal bipyramidal geometry. Molecular modeling has been
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Pneumothorax & Mechanical Ventilation Mechanical ventilation is the use of life-support to perform the work of breathing for patients who are unable to breathe on their own or are critically ill. The First Mechanical Ventilation machine was used in 1938 called the "Iron Lung " which used negative pressure. Positive Mechanical ventilators began to be used in anesthesia and intensive care during the 1950s. The development was confirmed by the need to treat polio patients and the increasing
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