Purpose: to determine the equilibrium constant for the following reaction: Fe+3  +  SCN–  ⇄   FeSCN+2 Part I:  Preparation of a standard absorption curve for FeSCN+2 Standard 0.20M Fe(NO3)3 0.0020 M KSCN 0.100M HNO3 [FeSCN+2] Absorbance A   10.0 mL 0.0 mL 15.0 mL 0.00M 0.000 B   10.0 mL 1.0 mL 14.0 mL 0.00008M 0.281 C […]