5Please answer #4 and #5If any info is missing that is needed, leave a comment and I will update that. 4. Determine the initial concentrations of Fe and SCN (before any reaction) and theequilibrium concentrations of FeSCN" (after the reaction has reached equilibrium) for the restof the tubes in Part A. Refer to the volumes of Fe(NO), KSCN and water listed on page 3Lsteps 2 and 3). Note that you already did tube 5 and that ALL tubes have the same [Fe'"Jinit.ISCN Jinit|Fe"linit|FESCN legTube346.75. You will measure the absorbances of the solutions in test tubes 1-7 and enter the equilibriumconcentrations of FeSCN to create a "standard curve." What is the purpose of creating thestandard curve? Part A: Determination of the Standard Curve1. You will be provided with burets filled with 8.00 x 104 M KSCN(aq) and water. Put yourwaste container below each buret and drain the liquid level down to 0.00 mL. As the liquiddrains, gently tap the buret near the bottom to flush any air bubbles out of the tip.2. Label your test tubes 1-7. Dispense the listed amount of 8.00 x 104 M KSCN(aq) and waterinto each test tube.Test TubeVKSCN (mL)VH2O (mL)0.005.000.501.0024.5034.004.1.502.003.5053.002.503.006.2.5072.003. Collect approximately 40 ml of 0.100 M Fe(NO,).(aq) stock solution in the corresponding100 mL beaker (pre-labeled for you).4. Rinse the volumetric pipet designated for 0.100 M Fe(NOs); with a small amount of thesolution. Use this pipet to transfer 5.00 ml. of 0.100 M Fe(NO)s to each test tube.

Answered: Image /qna-images/answer/1855a5ee-bef3-4683-aaf2-b7b60b91866e.jpg

4. Determine the initial concentrations of Fe" and SCN (before any reaction) and the equilibrium concentrations of FESCN (after the reaction has reached equilibrium) for the rest of the tubes in Part A. Refer to the volumes of Fe(NO). KSCN and water listed on page 3 (steps 2 and 3). Note that you already did tube 5 and that ALL tubes have the same [Fe"Jnit. [Fe linit [FESCN"leg Tube [SCN Jinit 2. 3 4. 6. 7.

4. Determine the initial concentrations of Fe" and SCN (before any reaction) and the equilibrium concentrations of FESCN (after the reaction has reached equilibrium) for the rest of the tubes in Part A. Refer to the volumes of Fe(NO). KSCN and water listed on page 3 (steps 2 and 3). Note that you already did tube 5 and that ALL tubes have the same [Fe"Jnit. [Fe linit [FESCN"leg Tube [SCN Jinit 2. 3 4. 6. 7.

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter12: Chemical Equilibrium

Section: Chapter Questions

Problem 12.37PAE: Again the experiment in Exercise 12.33 was redesigned. This time, 0.15 mol each of N, and O2 was...

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