i do not understand how do we calculate the molarity of FeSCN2+. Please help

Practice ase of the Ovation pipette (instructions in Appendix H) with deionized water in a small beaket following the instructions below. Do NOT hold it horizontally when a disposable tip in attached. Check calloration the pipette by weighing a blue plastic "boat" on the milligram halance, then measuring two 1000 . HLL portions of deionized water into the boat and weighing. Is this the mass you expeer? Report the mass of water to your instructor. 1. Obtain 35mL of 0.10MFe(NO3 b in 0.10MHNO and pour into a 400mL beaker. Add 315mL deionized: water, stir. This is your 0.010MFe(NO3) ) 2. Obtain approximately 10mL of the stock solution of 0.0200MKSCN in your smallest beaker a) Using a clean, dry tip measure a 600 . L(0.600mL) portion of KSCN(se) into K50mL volumetric flask (previously rinsed with deionized water). b) Fill the flask about half way with 0.010MFe(NO3)ssswirltomix,andthenfilltothecalibrationmark with 0.010MFe(NO3)3.. Add the last few drops of from a Pasteur pipette, so that the meniscus just rests on the calibration mark. c) Stopper and shake to mix. d) Pour this into a dry beaker labeled "standard 1"., then pour some of this solution into a plastic euvete., rinse and discard; then fill the cuvette with "standard 17.A second cuvette should be filled with 0.010M Fe(NO NO3, and used as your "blank" 3. Read the instructions on use of the Go-Direct Plus Spectrovis spectrophotometer (Appendix G) and read the absorbance of your solution at 450nm. (Notify your instructor when you do this for the firat time.) Discard "standard 1 " 4. a) Rinse the 50mL volumetric flask with about three portions of deionized water, and prepare the second stundard using 500.L(0.500mL) stock KSCN, and dilute to 50mL, with 0.010M Fe(NO 3)3. Pour into It dry beaker and label standard 2. b) Use some of this solution to rinse the cuvette, then fill the cuvette with standard 2. Read the absorbance at 450nm. Be sure to calibrate the instrament using the "blank" with 0.01MFefNO ) before taking your readings. c) Standard 3 is prepared using 0,400mL(400,L); standard 4 using 0,300mL(300.L); and standard 5 using 0.200mL(200.L). Absorbance values are read as before. d) Calculate the molarity of FeSCN+ in the five standards, from the given molarity of the KSCN stock solution. e) Using Excel, graph ahsorbance (no units) vs concenrarion (mol/L), including 0 absorbance for 0 molanity. Determine the value of e from the graph. Discuss whether your data illustrates Beer's law, or if there appear to be errors in one or more data points. What might have caused errors 5. Return rinsed glassware to the stockroom. Write the heading, and objective and Calculate the molarity of FeSCN in the five standard you will be preparing in the lab this week (steps 2 and 4 of your procedure). The KSCN stock solution has a 2.00102M concentration. Use the dilution formula M1V1 =M2V ) Reproduce the tables from the report form of this experiment into your notebook