The purpose of this lab was to find out the reaction of iron nails and CuSO4‚ copper sulfate solution. Before starting the experiment‚ there were two possible outcomes of the reactions. CuSO4 + Fe → FeSO4 + Cu or 3CuSo4 + 2Fe → Fe2(SO4)3 + 3Cu. The ion chart showed that iron can only make two charges‚ +2 and +3. As the liquid evaporated‚ the weight changed because the liquid added to the nail’s weight. In a real world situation‚ scientists can use ratios to determine how much of a substance that
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STOICHIOMETRY The reaction of Iron with Copper(II) Sulfate Purpose: In this experiment we will use stoichiometric principles to deduce the appropriate equation for the reaction between metallic iron and a solution of copper (II) sulfate. This reaction produces metallic copper‚ which is seen precipitating as a finely divided red power. Materials: Flask beaker Copper solution Balance Hot plate •150 ml beaker •1 gram of iron power •30 ml of CuSO₄
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Name: Peggy Nguyen SPCH 1 Demonstration speech outline How to Curl Hair with Curling Iron General purpose: to entertain. Specific purpose statement: I will show you guys how to curl your hair using the curl iron. Central idea: three main points will be discussed such as accessories to do this hair style‚ how to do it‚ and final look. Introduction Attention Getter: Does anyone in this class want to wear the same clothes to go to school every day or every week? I think no one wants to do that
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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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01/30/2015 Should tablets replace textbooks? Nowadays‚ with the improvements of technology‚ mobile devices were invented in order to make the world developed‚ connected and managed. One of the newest invention is tablets. With touch-screen display included cameras‚ microphones‚ accelerometer and other utilities as a computer‚ tablets participated to supporting education. People choose tablet because of its proficient functions and the convenient appearance. In recent years‚ tablets have become what
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Iron Age Hoplite Warfare brings about the First Democratic Societies in Archaic Age Greece‚ Following the Role of Monarchy‚ Feudalism and the Aristocracy As per the coverage in our course‚ in the Persian War‚ a Greek force from Athens set out to meet the invading Persian army at Marathon‚ and set them running. They were outnumbered by the Persians two to one‚ and the Persian army had been the biggest force the Greeks had ever seen. The majority of the killing took place while the Persians were
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the iron rivets used for the construction of the Titanic were cheaply made and resulted in the damage from the iceberg to be more extensive than normal. The problem of the iron rivets were the way they were created. The usual composition for iron rivets would use about two percent of a substance called slag (Spignesi 265). “Slag is glass residue that is left over from smelting metallic ores” (Spignesi 265) It is used in iron rivets to make them structurally stronger
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increase of urban living. Society was soon divided into two classes: employers and laborers. The employers rapidly accumulated wealth and lived luxurious lifestyles while the laborers lived in complete filth and poverty. In Harding Davis’ Life in the Iron-Mills‚ the reader can clearly see the dehumanizing effects that the industrialization had on working individuals‚ and Marx’s idea of alienated labor coincides with Davis’ depiction of the daily
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conflicting viewpoint assignment‚ we had to utilize ProCon.org and other credible sources to further our erudition on different viewpoints. An example of a controversy that held two great viewpoints‚ was whether students should temporally use tablets or textbooks. Tablets are a part of technology and is one of the main objects millennials use today. Books have been around for centuries and have yet to fail us in expanding our learning. “Books allow you to fully explore a topic and immerse yourself in a deeper
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PressReleasePing Kensington Tablet Cases Make Holiday Shopping a Snap From rugged protection to extreme personalization‚ Kensington tablet cases have it all‚ and at budget-friendly prices Redwood Shores‚ CA‚ October 8‚ 2014 /PressReleasePing/ - Kensington‚ a worldwide leader in delivering smart. safe. simple.™ computing accessories‚ offers a host of tablet cases that ease holiday shopping in a world that is always wired‚ from classroom‚ to dining room‚ to boardroom. Kensington tablet cases address a variety
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