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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Back to School: A Comparative Essay Walking back into school for the first time in years sent a rush of memories through my mind‚ from the tree I used to climb after school to the conversation that lead to the premature loss of my virginity and so much more. Surprisingly‚ my emotions lead me to something else altogether…looking at the dull concrete walls‚ iron laced windows and towering fences I realized; public school truly is a prison. Mind you‚ your average middle or high school may not have
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Parker’s back Parker’s back In the story parker’s back the author reveals‚ the contradiction of the holy woman and the man that is prevailed to be the sinner. I feel that Parker grew from a boy to a man without realizing the inner changes he made. Parker is characterized as a ladies man that is covered in tattoos and swears a great deal. From a young age he is rebellious and doesn’t commit to anything. I believe that as a boy Parker thought foolish things such as tattoos‚ drinking‚ swearing
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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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The Soft Impact of Baby Sea Turtles I stood on the slightly warm grainy‚ yet soft sand as I faced the calm crashing of the loose small waves. The mysterious light that radiated off the moon‚ showed me the promise which the night holds. The clouds escaped my sight for just this one night to show me the beauty of the twinkling ball of fire in the midnight colored sky. Silence mixed with the soft roll of the ocean permeated the area around me.The breeze danced through my hair‚ and cupped my face
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Elvin Banuelos Back to Representation Robert Zemeckis’s Back to the future takes place during the 1950’s‚ a time when capitalism was on the rise in America. It serves a greater purpose than showing what it’s like for Marty Mcfly to travel back in time‚ but rather real events which had occurred prior to the 1950’s‚ including the beginning of the Cold war versus the Soviet Union. The movie serves as a good representation on how this country has changed its way of thinking from the 50’s until the
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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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Ashley Lyon Communication Arts Giving Back In America we are very fortunate‚ the majority of the population is blessed with food to eat and a roof over their heads and the comforting promise of freedom and protection. Our country is solely based on the income and output of families and large corporations; the wealth of our nation allows most of the population to live comfortably. Being raised in a home where past generation family traditions and values are present; coming together to eat dinner
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Informative Speech: Endangerment of Kemp’s Ridley Sea Turtles In 1947 it was reported that over 40‚000 Kemp’s Ridley sea turtles were nesting along the shores of the Gulf of Mexico and today only 200 Kemp Ridley’s remain on those grounds‚ making these sea turtles one of the most endangered animals in the United States. When I was younger I remember visiting South Padre Island and seeing holes a long the shore line with little eggs inside them‚ I also remember this man who drove up and down the
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Holocaust and the Auschwitz concentration camp. But because I’ve already read it‚ the book would just be a safe choice for me and I do want to read something new. Therefore‚ I decided to go for a book which I knew completely nothing about. As a result‚ “Turtles all the way down” became a part of my bookshelf as a recommendation from an article about new worth-reading books on Buzzfeed.com – an interesting but click-bait website to be honest. 2. Plot summary Sixteen-year-old Aza Holmes‚ who was struggling
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