# Need help. please explain Mixture FeSCN Absorbance O-149 O-250 O-314 O.432 O.521 1 3 Caloudations xperiment...

###### Question:

Mixture FeSCN Absorbance O-149 O-250 O-314 O.432 O.521 1 3 Caloudations xperiment 23. z046 Lab Complete the tables below for each of the five mixtures you prepared. You may use this page to replace the data pages for Expt.  23 that appear in your lab manual. Mixture 1 [Fe ISCN [FeSCN1 Initial A Equilibrium K Mixture 2 [Fe"] SCNT FESCN Initial Equilibrium Ke= Mixture 3 Fe"] SCN' FESCN Initial Equilibrium K.=
Mixture 4 FeSCN Fe [SCN Initial Equilibrium Mixture 5 [FeSCN [Fe ISCN Initial A Equilibrium K, Average Value of K (from all trials) Use the following calibration curve to convert your absorbance readings to equilibrium concentrations of iron thiocyanate complex. The slope is 4840.00 ABS/M and the intercept is approximately zero: Calibration Curve for Iron Thiocyanate 1.6 Slope 4840.00 ABS/M 1.4 Intercept 0 1.2 0.8 0.6 0.4 0.2 0 0.0003 0.00035 0.0002 0.00025 0.00015 0.00005 0.0001 [FeSCN 2+]

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