Experiment 3

Experiment 3 - Experiment 3: Development of an Equation Dan...

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Experiment 3: Development of an Equation Dan Willis Chemistry 121 T.A. - Chao Fang October 12, 2007
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Purpose: To determine the formula for the ionic solid formed in a reaction and to write the chemical equation for the reaction Procedure: Refer to pages 26-28 in General Chemistry Laboratory Experiments Volume 1 by Casey and Tatz, Hayden McNeil, 2007-2008. Report Sheet: see attached report sheet Sample Calculations: Balancing Equations Balancing Potassium Iodide and Lead Nitrate 1. Write down the reactants and products KI + Pb(NO 3 ) 2 KNO 3 + PbI 2 2. Change molar ratios so that there are the same amounts of products as reactants. 2 KI + Pb(NO 3 ) 2 2 KNO 3 + PbI 2 Report Questions: 1. The charge on the iodide ion is -1. The charge on the lead ion in lead iodide is -2. The formula for lead sulfide is Pb(II) S. 2. The charge on manganese is +2. The charge on diatomic manganese is +6. The two compounds are: Mn = diatomic manganese and (SO 4 ) 3 is trisulfate 3. The charge on gold is +1. The charge on gold in AuBr
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Experiment 3 - Experiment 3: Development of an Equation Dan...

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