Synopsis The objective of this experiment is to determine the percentage by mass of calcium carbonate‚CaCO3 in toothpaste using back titration technique. A known weight portion of toothpaste is obtained to react with known volume and concentration of standard acid solution. After completing the reaction‚ the resulting solution containing excess acid is back titrated with known volume and concentration of standard base solution. Determination of excess acid after reaction allow us to calculate the
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Lee 1 Lee Andrew Pamela Gressier English 105 May 23rd‚ 2014 There And Back Again Growing up‚ one of my most favorite places to go as a child was the jungle gym at Wardlow Park. I was always fascinated with the jungle gyms and park‚ and always made it my daily personal mission to go as much as I could. However‚ the Wardlow Park is vastly different now then it was back when I was a little kid. From the environment to the current inhabitants‚ almost every aspect of the park has changed. When
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does Fugard convey the theme of anger and hatred through the different characterizations of Sam and Willie?” Inside the society during the 1950s in South Africa‚ there was a major movement that was taking place known as Apartheid. This movement is to be known as the whites having total control politically and socially speaking. In other words‚ the discrimination towards black people. Throughout the play of Master Harold… and the Boys by Athol Fugard‚ the theme of anger and hatred is present. Fugard
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the concept of the flux capacitor. Before Doc can make his first trip‚ Libyan terrorists‚ from whom he stole the plutonium‚ arrive and shoot him. Marty attempts to escape using the machine and inadvertently activates the time machine where he travels back to 1955 and finds himself without the plutonium needed for the return trip. While exploring the 1955 Hill Valley‚ Marty meets the teenage George who is being bullied by Biff Tannen. As George is about to be hit by Lorraine’s father’s car‚ Marty pushes
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Throughout the Iliad many characters‚ elements‚ and themes can be compared and contrasted due to the many different situations‚ topics‚ and lessons to be shared with the reader. The two words that I have chosen to compare and contrast with examples cited are anger and justice. These words allow for the reader to see different points of view‚ make connections with the characters and understand the events. Anger and justice seem to resonate with my thoughts quite often while reading this story
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Porter’s model highly focuses on rivalry and profitability but has some major limitations that have many organizations consistently reevaluating their strategic plans. Porter indirectly rebutted the assertions of other forces‚ by referring to innovation‚ government‚ and complementary products and services as "factors" that affect the five forces (Porter‚ 2008). He assumed that his model will allow markets to stay fairly stable‚ not taking into account brisk technological advances or increasing competition
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BACK TITRATION AIM - To estimate volumetrically the amount of calcium carbonate present in the eggshell and analyzing the sources of errors to evaluate the result. Part A: Standardization of 2M NaOH(aq) Data Collection : Weight of substances Uncertainty Weight of watch glass + salt (potassium hydrogen phthalate) w1= 23.4380g ± 0.001g Weight of watch glass ( after emptying the salt)w2 = 21.5430g ± 0.001g Weight of salt (potassium hydrogen phthalate) w1 –w2= (23.4380± 0.001g) – (21
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LOOK BOTH WAYS - The film is an authentic personal and group portrait of how humans deal with personal tragedy‚ depression and loss - Depicts the daily life we all lead‚ where tragedy and crisis are just around the corner Characters: Nick - not yet in control with his medical diagnosis; hasn’t come to terms with his father’s death‚ therefore impossible to accept his own - describes his life with self-critical cynicism as a matter of “poverty‚ wars‚ natural
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IF YOUR BACK HURTS‚ DON’T IGNORE THE PAIN. PHYSIOTHERAPISTS WILL CORRECTLY ASSESS THE PROBLEM AND PROVIDE SAFE & EFFECTIVE TREATMENT. Roughly 70 to 85 percent of people have experienced back pain at some point in their lives. Many cases of lower back pain are the result of a muscle strain. The good news is that such back pain generally heals quickly in a few weeks or months. Depending on the causes of lower back pain treatments can vary from person to person‚ so it is generally advisable to get
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Returning Back to School Ngozi Ezenwabachili American Sentinel University Returning Back to School Yes I am returning back to school‚ for many reasons. Graduated from associate of nursing degree in December 2000. My plan was to continue to BSN program immediately‚ but due to situation of things in my life‚ I was not able to continue. It has always been my dream to acquire a bachelor degree in nursing and even become a nurse practioner one day. There are many advantages of getting a higher
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