EXPERIMENT 4: BACK TITRATION CONTENT NO. CONTENT PAGE 1. Synopsis 3 2. Introduction 3 3. Theory 4 4. Procedure 4 5. Results and Calculations 5 – 6 6. Discussion 7 7. Conclusion 7 8. References 8 1. SYNOPSIS The purpose of this experiment is to use the back titration method to determine the percentage of calcium carbonate in toothpaste. Instead of using standard titration methods where an acid is titrated directly using a standard solution of a base‚ back titration is used because
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To Hell and Back On the surface‚ Edgar Allen Poe’s “The Pit and the Pendulum” relates the story of a man tortured by the Spanish Inquisition. The man‚ remains nameless throughout the story‚ is condemned to death for an unknown crime and loses consciousness. He awakens in complete darkness and is frightened that he has been locked in a tomb but shortly realizes that he is probably in a dungeon. After exploring the enclosement‚ the prisoner collapses and falls asleep. He wakes up to an offering of
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Remembering the Renaissance masters Leonardo‚ Raphael‚ Donatello‚ and Michaelangelo -- to whom the Teenage Mutant Ninja Turtles (TMNT or Ninja Turtles) were named after -- but in a humorous way‚ an artist created a mural of the painters who in Ninja Turles-form. As shared by comicbook.com‚ artist Owen Dippie‚ a child of the 80’s and 90’s‚ loves mixing together on the walls of Brooklyn both classical art and pop culture. New York-based New Zealand artist‚ as posted by Bored Panda‚ painted his
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Back to School: Education is very important. It determines what you can do in life. It concludes who you will become. President Barack Obama believes that education is vital and his domestic policy is still focused on education. Why does Barack Obama believe that education is so important to the United States? Why does Obama think education will make the U.S. more competitive? President Barack Obama addresses the target audience directly. The target audience is the students from kindergarten
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The Waffen S.S. played a big role within WWII for the germans. The german army wouldn’t have gotten anywhere close to as far as they did. Hitler may have been the leader in this movement but the S.S. were the true evil in this appalling war. When Hitler was first put into the position of Chancellor he needed a strong following to help him on his path of destruction. When his plans of genocide started the Waffen S.S. became a german powerhouse and was a lead reason for many families left without
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Period: 9:25 MW Sea Turtles General purpose: To inform Specific purpose: To inform my audience on the causes of the endangerment of sea turtles. Introduction Attention Getter: Over millions of years‚ sea turtles have played a major role by maintain the overall health of marine ecosystems. Reason to listen: According to the Sea Turtles Conservancy‚ sea turtles have existed over 100 million years but numbers of the species are suddenly dropping. Credibility Statement: Sea turtles are one of my favorite
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The importance of behavioral adaptations in turtles to thermoregulation and survival Katherine Whitehead Biology 301 Lab 7/15/13 Abstract Thermoregulation is necessary for ectotherms to survive. One important mechanism for thermoregulation seen in turtles is the ability to migrate between land and water habitats. This mechanism was studied using I-button data loggers placed inside marshmallow peeps to record temperatures in two different microhabitats; one in a stream and the other on the
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Based on the short story “Back to the Dreamtime”‚ I would like to write a journal about the relationships of the two main characters. Two main characters that I choose in this story are Richard and Tom. This is because there are many things that Richard and Tom doing together. Richard‚ a teenage Aboriginal boy raised in white Australian society‚ is compelled to come to terms with his past by forces outside his control. He was adopted by the McDonalds. His father died when he was two years old.
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some of aboriginal decortion that almost same that his found at his house and Richard asking the curator of gallery‚ MrAranda to get a information about Aboriginal ritual. When the school of the year is over‚ Richard asking his step parents to go back to Alice Springs to find his late father burial ground. So Richard go to Alice Springs with Tom and Bradley and with the the help from others people especially Urandangi‚ finally Richard found his family background. After that‚ Richard make a decision
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“Back to the Dreamtime” wrote by H. Q. Mitchell showed that a teenage Aboriginal boy‚ Richard‚ who was a boy raised in white Australian society‚ however he never forget to claim himself as an Aboriginal. Therefore‚ he never give up to find his father’s burial ground. Richard‚ his brother‚ and his best friend on a journey of self-discovery‚ mystery and adventure through the Australian outback. In this novel “Back to the Dreamtime”‚ there are several main characters‚ but I would like to choose Richard
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