Question

1.Write the reaction for the formation of FeNCS^2+
2.Write the equilibrium constant expression for the formation of FeNCS^2+
3.What are the FeNCS^2+ concentrations in solutions 1-6 used for the calibration curve?
4.Calculate the value of Keg from the following equilibrium concentrations: [FeNCS^2+]=1.71x10^-4 M, [Fe^3+]=8.28x10^-4 M, and [SCN-]=4.28x10^-4 M.
5.State the Beer-Lambert law and define all terms in it.
6.Why is a calibration curve constructed? How?
7. Briefly explain the meanings of the following terms as they relate to this experiment (a) reversible reactions, (b) state of dynamic

Answer 1

Calibration curves are terrible, it's all about standard addition..

but to not digress, can you separate FeNCS^2+ into it's respective ions?