from theoretical yield. Through simple molar calculations‚ using the coefficients in the balanced chemical equation( CaCl2(aq) + 2NaOH(aq) Ca(OH)2 + CaCl2)‚ the limiting reagent could be determined from the volumes of reactants used. The number two to four tests turned out as expected‚ NaOH and CaCl2 respectively being the limiting reagents. In the second test‚ according to our calculations‚ the products should have completely reacted‚ leaving pure water after filtration. In the test‚ the addition
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F3.3 – LIMITING FACTORS • a factor that causes popn growth to decrease • two basic types: 1. density-independent factors 2. density-dependent factors 1. Density-independent factors • an abiotic event that affects all popn’s in the same way‚ regardless of popn density • e.g. fires‚ earthquakes‚ storms‚ temperature extremes… 2. Density-dependent Factors • a biotic interaction that varies in its effect on popn size‚ depending on the density of the popn involved • have greater impact on denser popn’s
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Limiting Freedom Paige Shields Ethics: Freedom Seminar June 27‚ 2012 Abstract The federal government is take their role a little too far by limiting some of the simplest freedoms that have been given to the American people. The American people are being used by the government to create the “perfect” society in unjust and unethical ways. They are using things such as seatbelt policies that are costing more money than we could ever imagine‚ smoking in public to limit the
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regulations because of the pollution it was causing. Hart and Nelson debated to reinforce citizen’s rights in order to sue the EPA over bad enforcement of the proposed law. However‚ Poage was more concerned over the industries that will be affected by limiting pesticides. Poage called for indemnification for manufacturers whose pesticides are legally removed from the market. Hart and Allen were largely against giving
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There are times of the year when students begin to be exhausted‚ and it is because of all the homework they have to do. As they sit down and pull out their piles of homework‚ it rises to the ceiling. Moreover‚ incalculable of kids go to bed extremely late at night because of it. Teachers should limit the amount of homework they give out. Too much homework has negatively affected kids‚ especially when it causes a tremendous deal of stress‚ too much time is required to complete it‚ and it impacts
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Homework has become part of the school life of the students. Homework is a schoolwork that the student is required to do at home‚ this is what help to the students to practice what they had learned in class‚ but now we wonder if homework is a real contribution in the learning of the students. All students have homework for school and mostly of them are having a great amount of homework which leads to the student to not having time for extracurricular activities such an academic activities or sports
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regulator capable of supplying in excess of 1.5 A over an output voltage range of 1.2 V to 37 V. This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage. Further‚ it employs internal current limiting‚ thermal shutdown and safe area compensation‚ making it essentially blow−out proof. The LM317 serves a wide variety of applications including local‚ on card regulation. This device can also be used to make a programmable output regulator‚ or by connecting
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Limiting Science Rough Draft #2 David Baltimore’s written work of Limiting Science: A Biologist’s Perspective discusses the controversy of research in molecular biology and its limitless freedom‚ disputing there should be freedom in which direction science heads‚ but the public should decide the pace at which it goes. Baltimore first begins his argument with the discussion of how molecular biology began. It was born from individual sciences where attempts at trying to solve the mysteries in these
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light-dependent reactions located in the leaf? 8. What is the function of a photosystem? 9. What is the function of water in the light-dependent reactions? 10. Describe the similarities and differences of Photosystems I & II 11. What are the limiting factors to photosynthesis? 12. Describe adaptations that allow the leaf to retain water. 13. Explain how photorespiration reduces production of glucose. Look at the graphs below. |A |[pic]
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Investigation 3 Determine the Limiting Reagent Chemistry Investigation 3 Limiting Reagents Aim: To determine the limiting reagent in a reaction. Hypothesis: if the number of moles of the solutions added together equals the stoichiometry ratio in the balanced equation‚ then we would not expect a limiting reagent in the reaction. Independent variable: The number of moles of the reactants Dependent Variable: The limiting reagent Constant Variable: The volume of reactants added Equipment:
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