Indirect determination of ∆H via Hess’s law Conclusion & Evaluation Research question: What is the ∆H/mol of hydration of CuSO4 (anh)? The ∆H/mol of hydration of CuSO4 (anh) is -70.2‚ according to the experiment done in class. It was determined by applying the Hess’s law‚ using two reactions 1) CuSO4-5H2O ----> CuSO4 (aq) + 5H2O 2) CuSO4 (anh) -----> CuSO4 (aq) According to the Hess’s Law‚ which states that the total enthalpy change for a chemical reaction is the same disregarding
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Laws Of Life: Determination “Pain is temporary. Quitting lasts forever‚” this small and presumably nonsignificant quote by Lance Armstrong‚ is actually one of the most urgent and meaningful things I have ever learned. In life I will have obstacles‚ sometimes they’re minuscule and sometimes they’re more significant. If I can stay focused‚ they don’t become anything. But‚ if I let that problem get to you it will become a major stumbling block in life. My stumbling block was about 2 and a half years
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Blake Taylor Nationalism and Self-Determination in Southwest Asia Southwestern Asia is the most western sub region of Asia. It is positioned directly south of Eastern Europe. And the region is encompassed by seven major seas; the Aegean‚ Black‚ Caspian‚ Mediterranean‚ Arabian‚ Red‚ and the Persian Gulf. The north region is disjointed from Europe by the Caucasus Mountains‚ the southwest region is disjointed from Africa by the Isthmus of Suez‚ and then the east region adjoins Central and South Asia
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Modified Winkler method for dissolved oxygen determination Abstract In this study the group has determined the presence of oxygen in sample through a modified winkler method. The amount of oxygen is determined through a series of reaction. A body of water can sustain life if dissolved oxygen is sufficed. Depletions in dissolved oxygen can cause major shifts in the kinds of aquatic organisms found in water bodies. Introduction The amount of dissolved oxygen present in water or wastewater
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The Patient Self-Determination Act is a federal law that allows all individuals to make choices regarding their life and death. Each state has some different regulations on this‚ but generally‚ individuals can create a living will so their health will be handled the way they want if they are unable to verbalized or come to a decision when approaching death. He or she could also have a durable power of attorney who the individual entrusts to make health decisions in his or her best interest. Examples
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Whale Rider: Inner Strength and Determination The film Whale Rider opens with a man‚ Porourangi‚ standing next to his wife as she gives birth to twins. Unfortunately‚ the mother and the son do not survive leaving only the girl who is named Paikea. This greatly upsets Koro‚ Porourangi’s father. As the reigning chief of the Maori people‚ he would have taught Porourangi’s first born son in the ways of their ancestors to become the next chief (Wald 2006). After experiencing such a devastating loss
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Chemistry 202 – Lab: Wed 2:30 11 April 2012 The Determination of the Heat of Vaporization of n-Pentane Introduction Section: The purpose of the Heat of Vaporization for Normal Pentane (n-pentane) Laboratory Experiment is to determine the heat of vaporization of n-pentane. This experiment was performed as a class. Each pair of partners had to go to the monometer and take the various measurements in order to determine the heat of vaporization. Experimental and Theory Section: PLS (cm)
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is very important especially in industries where quality control is monitored. One method to determine the sugar concentration of reducing sugars is by heating with 3‚5 dinitrosalicylic acid(DNS) which produce a red-brown product Miller(1959)The reaction is direct‚thus the method is preferred over the Benedict’s test method. The concentration of the coloured complex can be determined with the spectrophotometer at Absorbance 540.The sugar concentration of unknown sample can then be read off
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Experiment # 4a Title: Determination of the Hardness of Water from a Waterfall Aim: To determine the molarity of EDTA and to determine the hardness of water by measuring the concentrations of calcium and magnesium in a water sample by titration. Abstract: The aim of this experiment was to determine the molarity of a sample of EDTA and then to use this sample to determine the hardness of a sample of water. This was done using a titrimetric method. This was standardized using calcium chloride.
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Determination of Man’s Role in Latin America How society describes what is meant by a man’s role is an important definition in every culture. What is right or wrong for men to do in terms of behavior depends on each community‚ and on people’s own perceptions. Latin American culture has a strict set of values on sexual issues‚ reflecting a man’s role in society. For all of the communities in Latin America there exists a relation between a man’s role and machismo. The exaggerated sense of manliness
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