Do not pour solutions down the drain. Pour all chemical waste into the appropriate disposal containers provided.
**iron (III) nitrate in 0.5M nitric acid, potassium thiocyanate in 0.5M nitric acid, and 0.5M nitric acid are mild irritants. Please rinse any affected area with water.
Rinse your beakers and graduated cylinders and let them dry on the glassware rack above the sinks.
Rinse volumetric flasks and return them to their original tote.
Volumetric pipettes should be placed in the "pipet tub" with their TIPS UP!
Rinsed disposable pipettes and cuvettes can go in the trash
Wear masks and safety glasses...as usual.
Equipment and Materials
2 x 10-3 M iron (III) nitrate[Fe(NO3)3].9H2O in 0.5 M HNO3 (known to more than 1 sig. fig. - be sure to record exact molarity in lab and use it in your calculations)
2 x 10-3 M KSCN in 0.5 M HNO3 (known to 4 sig. figs. - be sure to record exact molarity in lab and use it in your calculations)
0.5M nitric acid (HNO3)
Vernier Spectrophotometer with plastic cuvettes
1-9 mL volumetric pipets
15, 20 & 25 mL volumetric pipets
50 & 100 volumetric flasks
10, 25, and 100 mL graduated cylinders
Part C: Determining the Equilibrium Constant, K, of FeSCN2+
Perform the experiment that you designed in your Prelab.