Lab 8 - Ocean County College Department of Chemistry...

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Ocean County College Department of Chemistry Experiment 8: Ionic Reactions Date Submitted: 27 MAR 2010 Date Performed: 24 MAR 2010 Lab Section: DL2 Course Instructor: Professor Maria Tamburro Purpose: Ocean County College 1 General Chemistry I DL2 Chemistry Department
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Is to work with acqueous solutions of ionic substances. Acqueous solutions are  those solutions in which water is the solvent. When Ionic substances are  dissolved in water, the ions separate and become surrounded by water  molecules. This separation is called dissociation. We will be focusing on  precipitates. An insoluble product which is electrically uncharged. All of the  precipitates result from the exchange of positive and negative ions between  reacting solutions of two ionic compounds. We will then learn how to write a  proper ionic equation using the various combinations listed in the procedures.  Note: Spectator Ions are not recorded in net ionic equations.  Procedure: I began the experiment by acquiring all necessary materials that I needed to  provide (cotton swabs, distilled water, black and white paper), and then sifting  through my ChemKit to find the provided materials. I will next create a table  necessary for recording data. I will then dilute the sodium hydroxide in one well  of the 24 well plate by adding one drop of NaOH directly from the auxiliary bottle  and then using the empty unlabeled pipet ad 59 drops of distilled water. Note, all  reactions will be performed in the 96 well plate. 1) Place two drops of the  following chemicals (cobalt nitrate, copper nitrate, iron nitrate, barium nitrate,  nickel nitrate) into 7 seven of the rows alphabetical rows listed. Example: 2 drops  of cobalt nitrate into seven of the A row wells. When performing the following,  never touch the tip of the pipet to the solution already in the well. Place 2 drops of  sodium phosphate in the five vertical wells under column number 1. Place 2  drops of sodium iodide in the five vertical wells under column number 2. Place 2  drops of sodium sulfate in the five vertical wells under column number 3. Place 2 
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This note was uploaded on 02/21/2011 for the course CHEM 181 taught by Professor Tambero during the Spring '10 term at Ocean County College.

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Lab 8 - Ocean County College Department of Chemistry...

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