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Il. Determination of the equilibrium constant A. For only your lab group, prepar

ID: 895160 • Letter: I

Question


Il. Determination of the equilibrium constant A. For only your lab group, prepare the following solutions: Solution Volume of 0.002 M Fe Volume of 0.002 M SCN Volume of H,0 B-1 B-2 B-3 B-4 B-5 5.0 mL 5.0 mL 5.0 mL 5.0 mL 5.0 mL 1.0 mL 2.0 ml 3.0 ml 4.0 mL 5.0 mL 5.0 mL 4.0 mL 3.0 mL 2.0 mL 1.0 mL Note: The concentration of the Fe" solution that you are using to make the Fe(SCN solution has changed! Make sure in preparing these solutions that you are using the correct concentration of Fe(NOs) B. Add ~1 mL of solution B-1 to the cuvette and place the cuvette into the spectophotometer. Close the lid and record the absorbance value on the provided data sheet. C. Empty the cuvette into the waste beaker. Rinse the cuvette with DI H20 three times, disposing of the rinse H2O in the waste beaker D. Repeat steps B though C until you have absorbance readings for all 5 solutions. E. Dispose of the solution in the waste beaker in the appropriate waste container (heavy metal). EXPERIMENT V: EQUILIBRIUM 5

Explanation / Answer

Il. Determination of the equilibrium constant A. For only your lab group, prepar