CHM 1045L Lecture 6: Lab 6 Heavy Metal Precipitation

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16 Nov 2015
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Lab 6 Heavy Metal Precipitation: Getting the Lead Out
Date Performed: 10/06/2015 Alexander Wilsey
Date Submitted: 10/12/2015
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Lab 06 - Heavy Metal Precipitation: Getting the Lead Out: Lab 6 Heavy Metal Precipitation: Getting the Lead Out
Wilsey, Alexander
Abstract
The process of Qualitative Analysis has been used for the separation of metals from solutions by many
scientists. This process separates the metals into groups based on their solubility at different solution
pH's and isolates them through selective precipitation. The precipitation can then be separated through a
combination of chemical reactions and qualitative analysis to be further identified as different types of
ions. The purpose of the experiment is to use of Qualitative analysis as well as stoichiometry equations
to allow the students to identify which three metal cations are found in a given solution. If the metals can
be separated from their solutions, then type of cations remained can be identified. This will be done by
using both of the processes above and they will be able to calculate the number of ions of each group of
metals. Each of the groups have 2 possibilities: Group one: Ag+ or Pb2+; Group 2: Cu2+ or Cd2+; Group
3: Ni2+ or Fe3+. The amount of ions formed will be in an excess amount, this will allow the ions to
identified each of the different reactions. The cations will be separated by their solubility, which will
allow them to be distinctly identified in each of their respected groups.
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Lab 06 - Heavy Metal Precipitation: Getting the Lead Out: Lab 6 Heavy Metal Precipitation: Getting the Lead Out
Wilsey, Alexander
Procedure
"Lab 6 Heavy Metal Precipitation: Getting the Lead Out." General Chemistry 1 Online Laboratory
Manual. Bluedoor, LLC., 2015. 10/06/2015. https://www.bluedoorlabs.com/online_manual.
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