Plot the absorbance, A, versus the FeSCN2 concentration of the standard solutions (the values from your Pre-lab assignment). From this calibration curve, determine the concentration of FeSCN2 in each of the equilibrium solutions you prepared using their absorbance values. You should use the program Excel and the LINEST function to plot and analyze this data. You should report 6 values for [FeSCN2 ]eq.