Datalogging Experiment (4) Acid-base Titration using Method of Double Indicators Student Handout Purposes To determine the composition of the following mixture by double indicator method: 1. NaOH(aq) and Na2CO3(aq) 2. NaHCO3(aq) and Na2CO3(aq) Introduction Consider a mixture of NaOH(aq) and Na2CO3(aq). Reaction between HCl(aq) and Na2CO3(aq) takes place in two stages: HCl(aq) + Na2CO3(aq) ⎯→ NaHCO3(aq) + H2O(l) …………………. (1) HCl(aq) + NaHCO3(aq) ⎯→ NaCl(aq) + CO2(g) + H2O(l) …………. (2) While
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Chemistry Experiment Double Indicator Titration 1 Aim The purpose of this experiment is to find the composition of a sample of sodium carbonate mixture by titration. Introduction The reaction between sodium carbonate and hydrochloric acid occurs in 2 stages‚ with the formation of hydrogen carbonate ion as the intermediate product. Na2CO3(aq) + HCl [pic] NaHCO3(aq) + NaCl(aq) NaHCO3(aq) + HCl(aq) [pic] NaCl(aq) + H2O(l) + CO2(g) [pic] Requirements Hydrochloric
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Emily the Fallen Rose In the story “A Rose for Emily”‚ William Faulkner uses characterization to reveal the character of Miss Emily. Her character is portrayed through physical description‚ her actions‚ feelings and words‚ and through the narrator ’s remarks about Emily’s nature‚ and through the actions‚ words‚ and feelings‚ of the other characters. In "A Rose for Emily"‚ William Faulkner creates a story about a woman who loses her sense of reality
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the fect that he is the only character in the tale who doesn’t cheat or trick someone. Despite this‚ he’s the one who suffers the most throughout the tale. His wife‚ Alisoun‚ cheats on him. He is tricked into spending the night in a bathtub hanging from the rafters of his house. He ends up falling‚ embarrassing himself in front of the town. Alisoun‚ John’s wife‚ is also Nicholas’s lover. She is well-known as being beautiful‚ married at only 18. She is the only character who goes unpunished in the
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homeless—penniless—and even without a name!(). It is apparent that the boarding school and the colonizers policies there led to the fragmentation and hybridization in Zitkala-Sa’s real identity. She loss between the two cultures and as a result she has a double visions or a double consciousness which identifies In Tyson’s words as ‚ “a consciousness
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This article has been accepted for publication in a future issue of this journal‚ but has not been fully edited. Content may change prior to final publication. IEEE TRANSACTIONS ON DEPEDABLE AND SECURE COMPUTING DoubleGuard: Detecting Intrusions In Multi-tier Web Applications Meixing Le George Mason University Angelos Stavrou George Mason University Brent ByungHoon Kang George Mason University Abstract—Internet services and applications have become an inextricable part of daily life‚ enabling
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The double movement concept can be difficult to understand within the new global economy because most consider markets and social life to be separate‚ but they are not. As Polanyi explains‚ “[Individuals do] not act so as to safeguard [their] individual interest in the possession of material goods; [they] acts so as to safeguard [their] social standing‚ [their] social claims‚ [their] social assets.” (Polanyi [year]:48) To understand how this affects the everyday individual‚ one must consider that
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The emotional effect of this double ending varies from sadness to happiness. The ending shows nothing ever ends how it should‚ life is not perfect. This is evident when we read Briony’s alternate ending where Cecilia and Robbie live happily ever after versus the alternative ending in which Cecilia and Robbie never get to fulfill their true love and spend the rest of their lives together. When you expect a story to end one way and it ends another it really brings you to think about why things happen
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Knowledge‚ A Double-Edged Sword It’s common knowledge that having greater intellect means you can be a more powerful human being. At least Fredrick Douglas´s theme in ¨Learning to Read¨ shows that in greater knowledge led to a greater understanding of oneself‚ and in turn‚ a greater person evolved from that gathered knowledge. Knowledge is a powerful anomaly‚ yes‚ but does all knowledge produce a greater future or greater fortune? Some knowledge in this world is better worth not knowing for the
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Journal Entry: Summary Rick Dadier‚ a war veteran is hired to teach at North Manual High School. This is his first teaching assignment‚ so he can support himself and his pregnant wife. Dadier learns quickly that the school has a severe discipline problem‚ and the established teachers advise him how to deal with the students. Regardless‚ Dadier tries to discipline the class and this provokes a violent response in which Dadier is ambushed by a group of students. Dadier then goes to seek advice from
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