Chromatography Questions Essay Example for Free

Chromatography Questions Essay Procedure: 1. Define chromatography: 2. Gather materials for the lab. 3. Mark the filter paper with a pencil line 2.0 cm from the end of the paper. 4. Write the color of the felt marker in pencil at the top of the filter paper. 5. With a felt pen, make a dot on the middle of the pencil line. Let the spot dry. 6. Repeat the process adding more ink to the spot. Try to make it thicker, not wider. 7. Set that filter paper aside. 8. Repeat #2-5 using a new filter paper and another color. 9. Secure the two pieces of filter paper using the paper clip and hang them so they reach the 25-50 ml mark in the DRY 400 ml beaker. 10. Remove the papers from the DRY beaker and set aside. 11. Using the 10 ml graduated cylinder, measure and pour 2.0 ml of vinegar into the 400 ml beaker. 12. Fill the 400 ml beaker with enough water to make a water-vinegar solution to the 25-50 ml mark. 13. Carefully place the two pieces of filter paper in the beaker so the dots are not touching the water-vinegar solution. If they fall into the solution, you will have to start over. 14. Observe the ink spot as the water-vinegar solution moves up the paper. 15. When the solution reaches the paper clip, remove it and mark the end of the solution with a pencil. 16. Let the filter papers dry on a paper towel. 17. Record your observations. 18. Measure and sketch the colors that you observe. Analysis: Answer these on another sheet of paper in ink or type. (Rewrite questions.) 1. Define chromatography. 2. With the black marker, how many different colors can you identify? Describe this. 3. Why do you see different colors at various locations on the filter paper? 4. Compare and contrast the colors in the black and/or brown markers on the filter paper with one other marker that is not black/brown. 5. How is the technique of chromatography used to separate a mixture? 6. Is chromatography a physical or chemical change? Explain! Conclusion: 1. Describe what you have learned from this lab. 2. Research different types of chromatography to understand how it is used. Rewrite this in your own words.

The Supernatural in Hamlet and Macbeth Essay -- GCSE English Literatur

The Supernatural in Hamlet and Macbeth  Ã‚        Ã‚   In both Hamlet and Macbeth, the supernatural plays a very important role. Supernatural elements are crucial to the plot and they also have a more thematic part as well. Shakespeare presents the ghost in Hamlet, and the witches and ghost in Macbeth, as disrupting elements that not only enhance drama, but also tear apart the existing order of things. They force the title character of each play to undergo their own internal struggle that grows from their insecurity of living up to the image of a man.       First, let us consider Hamlet. The presence of the supernatural takes center stage at the beginning with a dramatic appearance of the ghost of Hamlet's father. Although the ghost does not speak, his presence is seen and already disrupts. It is in later in this first act where the ghost plays it's first and most crucial part. In Scene V of act I, Hamlet and his father's Ghost appear together and alone. The ghost says, "A serpent stung me, so the whole ear of Denmark/Is by a forged process of my death/Rankly abus'd"(I.v.36-38). The first seed of disrupting things (both Hamlet's identity and Denmark) is planted here. The ghost's words make it clear that his murder was not only a crime against him, but also a crime against the land.       The core of the play then unfolds from the actions and words of this ghost. Hamlet's revenge against his uncle is certainly fueled by the ghost's words, but the ghost seems to serve a more subtle and internal part here. In the famous "To be or not to be" soliloquy (III.i.55-88), Hamlet makes it clear his is not only unsure of what action to take, but unsure of himself as well. It seems his father's aberration confuses Hamlet ... ...e serves as ghosts in the machine of the character's life. And it is that which really kills them or drives them to their death in the end.    Works Cited and Consulted: Bloom, Harold. "Introduction." Modern Critical Interpretations: Hamlet. Ed. Harold Bloom. New York City: Chelsea House Publishers, 1986. 1-10. Bradley, A.C. "The Witch Scenes in Macbeth." England in Literature. Ed. John Pfordesher, Gladys V. Veidemanis, and Helen McDonnell. Illinois: Scott, Foresman, 1989. 232-233 Goldman, Michael. Critical Essays on Shakespeare's Hamlet. Ed. David Scott Kaston. New York City: Prentice Hall International. 1995. The Riverside Shakespeare: Second Edition Houghtom Mifflin Company Boston/New York   G. Blakemore Evans and J.J.M Tobin eds. Shakespeare, William. Macbeth. Edited by Norman Sanders. Cambridge: Cambridge University Press, 1984      

Mental Health Project

My initial reaction to the news would be one of worry and apprehension. I know that mentally ill people may be violent in some ways and that they may wander around the community and with my young child at home, the negative scenarios would be endless. On the other hand I know that mentally ill people can also be cured and they should be given the chance to have their lives back as fully functioning members of society. With a halfway house as a neighbor, I would think that it would probably pose a threat to our way of life and the safety of my child. Its because the proximity of the center to us would disrupt our way of life for example I would not have peace of mind knowing that mentally-ill people are beside us, thus it would possibly lead to over protectiveness. I would also be overly concerned of who my child interacts with especially if the mentally-ill residents are allowed to roam the premises. I would also probably think that the neighborhood is not a safe and healthy community to raise my child. The stigma and the negative attitudes of people to the half-way house is also not far from reality and maybe as neighbors people would think of us differently also. Having a half-way house for mentally-ill people as a neighbor brings mixed emotions, fear, anxiety, pity and generally I would be upset. I would fear that the residents in the facility would harm us and especially harm my child. I would be anxious of the stress of having mentally-ill neighbors, that I might always be thinking of how they would affect our daily lives. I would also feel pity for those mentally-ill people because they do deserve a place to stay where they can get better before being institutionalized. And in all honesty, I would be upset by the fact  that as a health care provider, I should not be feeling and thinking this because I know that they can do get better and I should not be too narrow minded about it. Based on my feelings and thoughts about the halfway house, I would probably wait and see whether what the conditions are in the facility is and how it impacts the community before I decide to leave the community. Since I don’t want to be consumed by my irrational thoughts about the matter and I also don’t want to risk the safety of my child, then I would try my best to be objective in the decisions that I would make. Bibliography Atkinson, R. et.al (1998). Hilgard’s Introduction to Psychology 8th ed. New York, Prentice-Hall   

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