EXPERIMENT : Iron in Breakfast Cereal by Atomic Absorption Spectroscopy OBJECTIVES : 1) To determine the actual iron content of different brands of cereals 2) To compare the experimental results with the values listed on the manufacturer’s labels. INTRODUCTION : Iron is one of the important minerals that is required for our bodies to function properly. Most of the iron in our body is found in the blood such as haemoglobin‚ approximately 60 -70% of the human body’s iron is found in
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Gabriella Posess AP Chemistry- Period C 11/24/11 Iron Complex Lab Purpose: Be able to tell the difference between iron (II) and iron (III) solutions by performing redox reactions between irons oxidation states. Materials: test tube rack 6 test tubes- 25 x150 mm 25 mL graduated cylinder 6 stoppers 6 mL distilled water 6 mL Iron (III) chloride solution (0.02M FeCl3 x 6H2O) 6 mL Iron (II) sulfate solution (0.02M FeSO4 x 7H2O) 1 drop Potassium ferricyanide solution(0.1M K3Fe(CN)6)
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Iron deficient anemia is a decreased total iron body content. It occurs when iron deficiency is severe enough to lower the amount of red blood cells being formed and it causes the development of anemia. It is the most common deficiency in the world. Hemorrhages can also cause anemia and much greater problems. Bleeding can also be so slow that it is often overlooked. Iron is a necessity for all living organisms because it is needed for many processes. Iron levels are carefully regulated by
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A Case of Iron Deficiency (Summarizing and Note-Taking) Describe the structure of a molecule of hemoglobin and explain the role played by iron in the transport of oxygen. The structure of hemoglobin is a hemi group. A hemi group consists of an iron (Fe) ion held in a heterocyclic ring. Iron binds with oxygen. Therefore‚ it has a very important role in transporting oxygen in the blood. How is iron stored and transported in the body? Iron can be stored within intestinal entrecotes bound to ferritin
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Case 3 Bill Thurmond Pig Farm Problem: The pig farm that has been doing well for years is now incurring losses with low prices at market. What needs to be done to keep cash flowing so that the farm can keep open until market prices get better? Situation: Strengths- * From 1995 – current 1998 expenses have gone down drastically giving them less overhead. * Generations of farming experience * They are in a cooperative that pays them to farm. * They have timber and real estate
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The Bay of Pigs Invasion Spencer Thompson CHT 3OI Mr. Figueira December 17‚ 2011 On April 17‚ 1961‚ in Cuba‚ the United States of America was meant to be a part of an attack. Very many people were killed and the whole plan turned to utter failure. There are many embarrassing situations in United States’ history such as the Japanese-American Internment during World War II. From failure to overthrow
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“Forgive your enemies‚ but never forget their names.” The Bay of Pigs invasion started when Fidel Castro overthrew Fulgencio Batista in Cuba‚ it led to the United States involvement to push Castro from power‚ and ended with the failure of the Bay of Pigs invasion to stop communism. First‚ let’s discuss the start of the Bay of Pigs invasion. In 1959‚ Fidel Castro came to power in an armed revolt that overthrew Cuban dictator Fulgencio Batista. The United States government distrusted Castro and was
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Project Pig. (n) Any of several mammals of the family Suidae‚ having short legs‚ cloven hooves‚ bristly hair‚ and a cartilaginous snout used for digging‚ especially the domesticated hog‚ Sus scrofa domesticus‚ when young or of comparatively small size. Even though a pig is one animal‚ they have several symbolic meanings. The various meanings of pigs change from region or culture though. In an earlier culture such as the Ancient Egyptians the pig was a symbol for fertility. Here‚ the pig was sacred
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Aim: To Find and test the Iron content in different food sources INTRODUCTION: A Redox titration was used in order to perform this experiment. Reduction/oxidation (redox) process occurs when electrons are transferred from a donor species (the reducing agent) to another acceptor species (the oxidizing agent). It happens between an analyte and a titrant. A redox titration is done just as a normal titration is done‚ however instead of titrating an acid against a base‚ an oxidizing agent is titrated
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Determination of Iron by Reaction with Permanganate-A Redox Titration Purpose: The purpose of this experiment was to find the percentage of iron in an unknown iron oxide sample which could be determined through titration with a standard solution of potassium permanganate. Success in this analysis requires careful preparation and attention to detail. Performing this experiment also provides practice at titrations. The overall reaction is: 8H+(aq) + MnO4-(aq) + 5e- Mn2+(aq) + 4H2O Theory:
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