Part II. Sample 6-10 Solution Prep Table #2: Test Tube Solution Volume of Volume

Question

Part II. Sample 6-10 Solution Prep Table #2: Test Tube Solution Volume of Volume of Volume of 0.0020 Number 0.50 M HNO 0.00200 M KSCN 5.0 4.0 3.0 2.0 1.0 M Fe(NO3) 5.0 5.0 5.0 5.0 5.0 5.0 6 4.0 5.0 10 Part II. Sample 6-10 Absorbance and Equilibrium Concentration Data -Test Tubes 6-10 Test Tube Absorbance (FeSCN ] at equilibrium Solution Number 0.0 3 49 Part II. Sample Equilibrium Data Tables- Test Tubes 6-10 Test Tube Test Tube Fe SCN Initial: Change: Produced Test Tube 10 Test Tube Initial: Initial Change Equilibrium: Equilibrium Test Tube Initial Equilibrium

Explanation / Answer

for all the tables the ICE chart will remain the same, just the value of x will change. but with just the absorbance values given i dont know how to find the concentration. i don't think that is possible. you either need a set of concentration values with absorbance to find unknown concentration at given absorbance(from the graph) or you need the molar absorptivity constant. none of these is given

so, if you are able to find the concentration just substitute the value in each table with the formula I have given and you are done!

test tube 6 Fe+3    SCN- -> FeSCN2+ initial 0.002 0.002 0.0 change 0.002-x 0.002-x produced x concentration 0.002-x 0.002-x x

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