The Determination of Mystery Powder #47 Sarah Mike*, Katelyn Trinh, Halyn Hua Chandler Prepatory Academy Honors Chemistry Ms. Brezenski August 29th, 2024 Abstract: After Powders A, B, C, D, and E were individually observed and tested with Liquids 1 and 5, the data was used to prove what powders were in Mystery Powder #47. Three scoops of each powder were placed on a watch glass and their reactions with the liquids were used to determine the combination of the myster powder. After testing the reactions, it was determined that Mystery Powder #47 was a combination of D and B. Background: Students recorded the physical appearance of Powders A through E on a watch glass. The structure of the powders was also observed under a microscope. The …show more content…
Therefore, there is no data written in those sections of the table. Materials:.. Powder A Powder B Powder C Powder D Powder E Liquid 1 Liquid 5 Microscope Scoopulas Watch glass Mystery Powder #47 Test tube rack Test tubes Droppers for liquids Procedure: First, three scoops of Powder A were placed on a watch glass and spread using a scoopula. It was observed that the powder was a coarse, crystalized powder that did not combine easily with the large grains in the powder. However, when crushed, the powder left a soft residue on the watch glass. One small scoop of the powder was placed on a slide and then slid onto the microscope. Rounded cube shapes that were spaced widely apart appeared under the microscope. Powder A was then removed from the watch glass and slide, and disposed of. The scoopula, watch glass, and slide were washed with soap and water and then dried with a paper towel. Three scoops of Powder B were placed on the watch glass and pressed with the scoopula. It compacted easily, but when stirred together, the powder did not combine well. The powder was then observed on a slide under the microscope. However, the data for the image was