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Abbey Blair 9/24/15 Period 5 The Chemistry of White Powders Intro: In this lab i expected to learn what powder the unknown powder was but at the end me and my partner were still not sure on which powder it was, it wasnt until later when typing the lab that we figured out what the unknown mixture was. I learned however, that your hypothesis about an experiment may not always be correct. The point of the experiment was to figure out the unknown chemical. Safety: During the lab i wore goggles, and the materials were disposed of by washing out the containers with warm water. The hazards of the iodine was that its toxic if inhaled or ingested and irritates the skin, eyes, and respitory tract. The hazards of the phenol red was that its a skin and eye irritant. Procedure: The procedure was written in page 2 of the lab manual. Data: Powder A- Vinegar: Turned cloudy white Phenol Red: Fizzed then turned yellow Iodine: Turned black Water: Cloudy white and began to separate Powder B-
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  • Fall '13
  • DeWolfe
  • Chemistry, Primary color, fizzed, Phenol Red

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