CHEM 102 LAB LESSONS 1-3

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  • WHAT ARE THE SOME (5) FILTERING MEDIAS USED IN EQUIPMENT AND MANIPULATIONS FOR FILTRATION?
    •Filter paper
    •Gooch crucible
    •Glass crucible
    •Porcelain crucible
    •Alumina crucible
  • (2) Steps in preparation of crucibles
    1. Clean the crucible to be used thoroughly by backwashing on a filtration train. 2. Dry the crucible to constant mass.
  • a process where drying should be continued until the results of two consecutive weighings do not differ by more than 0.5 mg, the second weighing being made after an additional hour of drying under the prescribed conditions.
    Drying to constant mass
  • separation of solid from liquid
    Filtration
  • process of separation of immiscible liquid or liquid-solid
    Decantation
  • • forming an insoluble solid from a solution • solid that forms during a chemical reaction between two solids
    Precipitate
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