Purpose: The purpose of this experiment was to be able to apply our knowledge of chemistry to identify 10 unknown elements that were presented to us. We were allowed to use Bunsen burners‚ hydrochloric acid‚ use PH paper to test if the unknown solution is an acid or a base‚ and precipitate each unknown solution with each other. Procedure / Data / Conclusions: Unknown #1: I found solution 1 to be KI. While doing the precipitate reactions‚ I found that it precipitates only
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Unable to read the Gram Stain at first it was later confirmed that Unknown #7 was a gram negative bacteria. When introduced to Starch Unknown #7 produced no zone of clearing showing that it did not contain the enzyme amylase. When introduced to the Lipid Unknown #7 did produce a zone of clearing indicating that it did contain the enzyme lipase. When introduced to Casein Unknown #7 produced no zone of clearing indicating that it did not contain the enzyme protease. When streaked onto the Gelatin‚
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The poster for the first film gives very little away about the plot of the film‚ although it holds enough information to interest viewers. First of all‚ it contains lots of reviews from different newspapers and websites who are well known for reviewing the most popular movies. This in itself will interest followers of the website/newspapers‚ as the reviews positively reinforce the quality of the film. The reviews are enough to interest many film enthusiasts as they will be curious to experience the
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However‚ the original manufacturer‚ Kaufmann Ltd.‚ has gone out of business‚ and specifications for the part are unavailable. The purpose of this experiment‚ performed by Ryan Nelson‚ Peter Glascor‚ Eric Flowr was to determine the identity of the unknown polymer by comparing its properties to properties of other known polymers. Most likely‚ the part is one of the five following polymers: polyethylene‚ polypropylene‚ polystyrene‚ polycarbonate‚ poly(vinyl chloride). These are all extremely common
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For the unknown light source‚ it had almost every color‚ so it might have been be mercury because they have similar color beams and their color from the naked eye appeared as purple‚ which mercury‚ a light blue‚ is very close to in terms of it’s color on the spectrum. For the unknown flame crystals‚ it may NH4+ because the colors that appeared are very similar to the crystals. Next‚ chemicals have to be heated in the flame for the color to emit because heat adds energy to the substance making the
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Cathy Do Professor Wurzbacher ENGL 2305 April 19‚ 2015 The Meaning of “Home” in Love Medicine and The Book of Unknown Americans Home is a word that has an emotional feel to it. Home can mean when we are talking about where we belong‚ a place be need‚ somewhere to feel safe‚ and someplace to be loved or to love. Some may say that home is wherever family is or where you loved ones are. Home can be seen as a physical location like the house you live in or general area you live in. Home can also be
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"The Unknown Southern Land" Even in medieval times there were stories about a large continent in the Southerh Hemisphere. But Europeans had never seen it. They wondered what it was like and whether it inhabited. They called this land terra australis incognita 1 or «the unknown souther land» – Australia. Nowdays when people speak of Australia they can mean three things: 1) Australia as a continent; 2) Australia as an island and 3) Australia as an indenendent country. Australia
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Lillian Zhang AP Chemistry 3rd Period Formula of an Unknown Hydrate The purpose of the Formula of an Unknown Hydrate lab is to determine the weight percentage of H2O hydrated to an unknown salt and the empirical formula for the hydrated salt. To do this‚ a massed amount of the hydrate is heated over either a hot plate or Bunsen burner. This causes the water to be removed‚ leaving the anhydrous salt behind in the dish. The mass of the anhydrous salt‚ now with the absence of water‚ is less than
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The Tomb of the Unknown Soldier in the Arlington National Cemetery contains the remains of American soldiers who fought in World War I‚ World War II‚ the Korean War‚ and the Vietnam War that cannot be identified. They sacrificed their lives and helped change the lives of people then and now. When our class visits Washington‚ D.C‚ it will be important for us to be a positive and sophisticated group of 8th graders. That’s important because we want to represent our state and country for tourists
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“Fear is the most potent weapon‚” said Faraaz Kazi. Fear of the unknown and fascination of death torments the minds of the boys and causes a big split of the group during the middle of the novel. In the novel Lord of the Flies‚ William Golding uses fear and death to threaten the boys as fear becomes paralyzing and unconquerable by the realization that the only thing the boys have to fear is fear itself. In the very beginning‚ the beast was something that only existed in the boys’ minds and practically
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