Question

what are the chemical reactions for 2,3,4,5,7,8,9 if you're adding each of those to the balanced equation from the instructions which is Fe3+ + SCN---> FeSCN2+

PROCEDURE dean 400 ml beaker add 125 ml of delonized water, 10 drops of MKSCN and 10 drops A u ton This stack solution will have an intense red color due to the formation FeSON Onain 10 clean medium-sited test tubes and label them I through 10. Add 10 mL of the ution into each one of the test tubes. Keep test tube control and the following reaper tubes 2 through 9, respectively: Test Tube 2 mL 1 M Fe(NO), 1 ml I M KSCN 0.5 mL (10 drops) 0.1 M AgNO, 2 mL Conc. HCI 0.5 mL/10 drops) 0.1 M H (NO), wo dava 1 mL I M Na, PO, 1 ml 0,1 M Na.co. several crystals of solid NaF. Cover each test tube with paraffin film and shake to mix. Heat test tube 10 in a hot water bath. Then compare the color intensity of each of the test tubes with that of the control test tube. The test tube with the darkest color has the highest concentration of FeSCNIn each test record your observations and explain the results in terms of Le Chatelier's principle. Use the complexes and precipitates in Table 14-1 to explain your observations and write the equations of any reactions that occur. Table 14-1. Complexes and Precipitates A8 H8" a PO F GO² Fe": FeCl, FePO4(8) FeF, Fe(CO), SCN: AgSCN(S) Hg(SCN). DISPOSAL Dispose of any excess stock solution and the contents in test tubes through 10 into a waste bottle

Answer 1

Tubes 2 and 3 don't involve any other reaction than the original equilibrium, which is displaced towards the product in both cases:

Fe3+ + SCN- > Fe(SCN)2+

Tube 4:

Agtag+ SC Naq) + Ag(SCN)

Tube 5:

Feaq) + 4Claq) = Fe(Cl.com

Tube 6:

Hg ata) + 4SCN0g = Hg(SCN).

Tube 7:

Fet + POT) + FePO4,(s)

Tube 8:

Feaq) +3C202. g) = Fe(C204)

Tube 9:

Feate +6Fag) = FeFlag