Using the Method of Continuous Variations to Determine the Mole Ratio between Reactants Abstract: The purpose of this lab was to find the molar ratio of NaClO and an unknown substance labeled solution “B”. Using the method of continuous variation the ratio of the two solutions were changed but kept equal to 50 mL. The reaction was an exothermic oxidation-reduction and the temperature change was measured to determine which ratio of NaClO to solution “B” was optimal. The ratio with the highest temperature
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| JC Penney was once a fashion icon to children‚ young adults‚ and teens. Beginning in 1913 it currently operates over 1000 stores. Growing up my sister and I waited to go through their catalogue. We would circle everything we wanted. We would even get our hair cut the same way some of their models did. I went as far as crimping my hair because the model had her hair crimped. Every summer before school started my Grandma would take us shopping at Penney’s for new school clothes. This company
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McCallium Davis July 24‚ 2011 MUSI200 B006 Sum 11 Instructor: Bethanie Hansen Composition Analysis Paper of Handel‚ Messiah‚ “Hallelujah” Chorus I chose to do my paper on this particular piece because I love church music and wanted to get to know the history of this piece. I like this piece because this song can be used to encourage depressed people and those who are almost giving up in life. This musical acts as a comfort to them and gives them a reason to go on and to never give up. I
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All compositions are composed of literary units called paragraphs. The purpose of a paragraph is to carefully explain and develop a given idea or topic that is a part of a paper’s thesis. Each unit is then segmented into a variety of sentences which are used to develop the main idea of the paragraph. Almost always‚ paragraphs need a central sentence called the topic sentence. This sentence tells the reader exactly what subject he or she will expect to find in the rest of the paragraph. The topic
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Composition and Inverse Jack Lewis Mat 222 Instructor: Dr. Dariush Azimi January 14‚ 2013 Composition and Inverse The assignment paper for this week is to define the following functions of Elementary and Intermediate Algebra: Problem number 1) fx=2x+5‚ Problem number 2) gx=x2- 3‚ and Problem number 3) hx= 7-x3. Compute (f – h)(4). Evaluate the following two compositions: and . Transform the g(x) function so that the graph is moved 6 units to the right and 7 units down. Find the
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The percent yield was calculated to be 171% indicating a source of error. The high percent yield was due to the product being wet since we did not have enough time to dry the product with the vacuum filter—since we had to evacuate the building due to the fire alarm. If we were able to vacuum filter our product more‚ the percent yield would be close to 100%. 1. Assign the peaks in your NMR spectrum of your salicylic acid. See NMR spectrum on back 2. Assign the peaks in the IR spectrum of your salicylic
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ENG100 Exam 050183 Course Journal Student name and number: Ivette Torres / 21929233 A B C D 1. Me‚ a Writer? Attitude / Inventory 5 4.5 4 3.5 2. Prewriting Brainstorm / Thesis 5 4.5 4 3.5 3. Drafting Evidence / Organization 5 4.5 4 3.5 4. Revising Purpose and audience / Thesis‚ topic sentences‚ and paragraphs / Evidence / Organization 10 9 8 7.5 7 5 0 5. Public Space Explore / Freewrite 5 4.5 4 3.5
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1101 September 13‚ 2010 Should the Penny be Eliminated? The penny‚ a copper and zinc coin‚ that represents one cent in the United States currency‚ is as American as apple pie. It is part of our heritage to honor and recognize our founding fathers and past presidents for their contributions to the economic system of America. According to the Harris Poll #51 conducted online between June 10 – 16‚ 2004 including 2‚136 adults‚ the majority favor keeping the penny in circulation (Source E). The United
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Percent of Cu in a post 1982 cent PURPOSE: What is the experimental % of copper (Cu) in a post 1982 cent? In this lab‚ we will determine the % composition of a modern (post-1982) penny by using a strong acid called nitric acid (HNO3)‚ to react and dissolve the zinc core‚ leaving only the copper coating. Once only copper remains‚ we will then compare its’ absorbency to the other five post-1982 penny Cu concentrations made in this lab. INTRODUCTION: Before 1982 the US penny was made
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Lab Report Title Page: Determine Disinfectant and Antiseptic Effectiveness Using Zone Inhibition Method Prepared for: By: Date: Introduction Page: Abstract This study is to examine the effects of different types of disinfectants by disk diffusion method using common agents such as Betadine‚ Clorox‚ Crest‚ Kiss My Face‚ Listerine‚ and Lysol. Wound care and general cleaning of home surfaces is a part of daily activity for many of the general population. Knowing
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