Pre-Lab 4: Chemical Equilibrium Measuring an Equilibrium Constant For each solution 1–7, calculate the following information using the amounts given in the experimental procedure. Record this information in your notebook as well. You will need it to analyze your data at the end of the experiment. Show your calculations for tubes 1, 3, and 5 below (use the back if needed—write clearly). Test Tube [Fe3 ] [SCN–] Mole Fraction SCN– 1 2 3 4 5 6 7