Organic chemistry 201 | Mixed Melting Points | Determination of an Unknown Solid | | [Type the author name] | 9/15/2011 | Purpose : The main purpose of this experiment was to identify an unknown compound/substance by performing multiple experimental melting point tests. Pure and impure solids were tested to see what affect pureness/impureness had on a melting point. Background: The melting point of a solid can be used to determine the purity of the solid. Pure samples usually have
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Aleena Joseph‚ Melting Away‚ 2017‚ Oil on canvas‚ 16 x 20 inches It is common knowledge that the world has been changing and over time‚ it will come to an end and that the reason for those changes is humans. It is due to the excessive amounts of harmful human activities that the world is almost melting away. Global issues such as climate change or global warming may sound unrealistic‚ however‚ the events occurring around the world proves that these issues are real indeed. Just as an example‚ London
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Francisco Tejada Danielle Rhodes English 1102 2/10/14 The Melting Pot When people think of the United States‚ they think of a way of life that can be different or not so different to their way of life. The United States is said to be the melting pot of the world. A melting pot is a place where different ingredients are mixed to create one thing. The world thinks of the United States as a melting pot of cultures‚ religon‚ music‚ and way of life. Even though people in the United States are
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and methane observed from the Byrd Ice Core? Datasets: Byrd – Methane‚ del180‚ and CO2 Data Part 2: Primary Source: Antarctic and Greenland Synchronization Data for the Last Glacial Period Authors: Blunier‚ T.‚ J. Chappellaz‚ B. Stauffer Abstract: This data set consists of isotopic‚ carbon dioxide (CO2)‚ and methane (CH4) data collected from the Byrd and Vostok ice cores (Antarctica) and the Greenland Ice Core Project (GRIP). Data from the Antarctic ice cores are synchronized to the
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This volcano is the classic model volcano for science projects. You form the cone of the volcano around a bottle and then mix non-toxic kitchen chemicals to cause the volcano to erupt. Form the Chemical Volcano The cinder cone of the volcano is formed using clay. You’ll need a lot less ’volcano’ material if you make a general volcano shape out of paper and then just cover it with clay. Erupting Volcano Ingredients 1:- warm water 2:- baking soda 3:- liquid dishwashing detergent 4:- vinegar
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Recrystallization and Melting Point of Benzoic Acid Organic Chemistry 1 10/4/12 Abstract Recrystallization was done to remove impurities from the sample. The percent recovery of benzoic acid during recrystallization is 23.02%. The difference between the pure and impure samples was observed by comparison of melting points. It was found that impure sample had a lower and wider melting point range of 120.1-122.2 (C). The pure sample melting point range was 121.3-122.5 (C). These ranges helped determine
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Ice Ages and Climate Change Scientists believe that over the past 2.8 billion years‚ immense layers of ice have covered the Earth. The ice age proposes a puzzle composed of the works and findings of dozens of scientists through history‚ each providing a crucial piece to the puzzle. Scientists who worked on the development of this puzzle ranged from Geologists‚ Astronomers‚ Physicists‚ and early Biologists whom ultimately proved the complexity of this expanding subject. Progressing from a hypothesis
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“Fair is foul and foul is fair.” “Fair is foul‚ and foul is fair. Hover through the fog and filthy air‚” said the witches in the first act and scene of Macbeth. Pertaining to the story‚ I believe this quote sheds light to the audience on the evil the witches possess. Without even reading further into the book‚ the audience can feel the eerie aura that the witches give off. You can foreshadow that the witches are going to turn what is good‚ foul and maintain what is foul. The witches are saying
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“Fair is foul and foul is fair”. The text Macbeth is asphyxiated in themes of treachery‚ dishonesty‚ deception shown by the quote “Fair is foul and foul is fair”. This quote shows that despite the fact that something appears to be devout and pure it may underneath be treacherous and evil. The text is smothered in lies and betrayal from various characters. Shakespeare portrays this theme through the Witches and Hecate’s meandering of Macbeth’s prophecy which tricks Macbeth in to believing he is insuperable
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America is a Melting Pot America has become a melting pot of ethnic people. If you live in or near a city you can see the many ethnic cultures that influence our lives. America began with waves of immigrants‚ bringing their own cultures and traditions to a new country so they can express them. Nowhere else on this planet can you find such a diverse population. It ’s this mixture that makes America what it is but it also makes up a lot of the problems we face. For centuries the United States
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