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107 Exp1

107 Exp1 - Identification of Ag Pb2 and Hg22 Remember Hg22...

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Click to edit Master subtitle style Experiment 1 Identification of Ag+, Pb2+ and Hg22+ Remember Hg22+ = Hg(I) We determine the existence of chemicals by
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Schedule § Today § Exp 1 § Before checking unknown, fill out the front page of the report § By 1 hour before the next class § Pre-test 2 § Next week § Exp 2 § Exp 1 Makeup: Vertual Chem Lab (VCL) in the computer lab after the class
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Separating the first group Drop by drop until it stops prec. Mix solution well. Centrifuge and discard solution Separate supern. to a new test tube using a pipette. 10 drops. After heat, centrifuge it quickly 2~5 drops 10~15 drops 10 drops Supernatant 10 drops. Centrifuge and separate
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Very important!!! § Fill out the first page of the report § Example § § Checking Unknown § Start with 3 test tubes (each 12 drops) § 1 for known, 1 for multiple unknown, 1 for single unknown § For known, mix each 4 drops of AgNO3,
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107 Exp1 - Identification of Ag Pb2 and Hg22 Remember Hg22...

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