Model Chemlab Experiment: Cation and Anion

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Chemistry 1 1/20/13 MODEL CHEMLAB EXPERIMENT: CATION AND ANION “ THE CHEMISTRY REACTION” Introduction The purpose of this experiment is to demonstrate a double replacement reaction of ionic compounds. We will be demonstrating The reactions of ionic compounds that are supposedly soluble in water, If a reaction should occur during this experiment, then one of these ionic compounds are identified as not being soluble in water and a precipitate will occur. We may ask ourselves, what is ionic compounds?, Ionic compounds simply are where two or more ions are held next to each other by electrical attraction. One of these ions have an positive charge (cation +) and one will have a negative charge (anion -). Let’s experiment and observe Whether these ions will have a reaction or indeed soluble in water. Experimental Procedure Let’s begin this experiment by obtaining a 100ml beaker from our equipment tool bar list, then we are going to add 50ml(s) of Potassium Chromate 1M solution to that beaker, The next step we are going to add another ionic compound of 50ml of Lead (11) nitrate 1M into the same beaker as the Potassium Chromate. As we observe the beaker, we notice a reaction has occurred and a precipitate has formed and settled on the bottom of the beaker. The next step is we are going to filter the resulting precipitate into a 250 ml Erlenmeyer Flask with a Buchner funnel. Now that we have filtered the precipitate, we will then place the resulting precipitate into a test tube to measure the weight. By using the information above in our experiment, we were then able to determine that one of these ionic compounds are not soluble in Water and in turn, produced a resulting precipitate which is the evidence that a reaction has occurred. We then identified the anion and cation for these ionic compounds. The Potassium Chromate-
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