E. Determination of an Equilibrium Constant (25 points) The objective of the experiment was to measure the equilibrium c

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E Determination Of An Equilibrium Constant 25 Points The Objective Of The Experiment Was To Measure The Equilibrium C 1 (54.54 KiB) Viewed 72 times

E. Determination of an Equilibrium Constant (25 points) The objective of the experiment was to measure the equilibrium constant (K) for the following reaction: Fe Fe(SCN)(a) +SCN) → The first part of the procedure involved the determination of Beer's Law constant (k). The value of k product versus Concentration (C) of the product. The plot produced by the student is shown below: for the deep-red product Fe(SCN) f) was determined by producing a plot of Absorbance (A) of the 0.40 0.35 0.30 y = 8,560.0x + 0.0060 R² = 0.999913 0.25 0.20 0.15 0.10 0.05 0.00 0.000000 0.000010 0.000020 0.000030 0.000040 0.000050 Concentration Fe(SCN)²+ (M) 1. Using the data presented in the plot above, determine the student's value for Beer's Law constant (k) and write the value below with correct units. (5 points) 8,560 x + - 8560.0 L/cmfa 2. If the student then measured the absorbance of an unknown solution to be 0.257, what would be the molarity of this solution? Be sure to show all significant figures. (5 points) Absorbance 60 سم