- Reaction Fe3 Aq 0 0025 M Scn Aq 0 0025 M Hno3 Aq 0 10 M Total Volume 6 1 0 Ml 1 0 Ml 5 0 Ml 7 0 Ml 7 1 0 Ml 1 5 1 (281.77 KiB) Viewed 77 times
- Reaction Fe3 Aq 0 0025 M Scn Aq 0 0025 M Hno3 Aq 0 10 M Total Volume 6 1 0 Ml 1 0 Ml 5 0 Ml 7 0 Ml 7 1 0 Ml 1 5 2 (441.38 KiB) Viewed 77 times
- Reaction Fe3 Aq 0 0025 M Scn Aq 0 0025 M Hno3 Aq 0 10 M Total Volume 6 1 0 Ml 1 0 Ml 5 0 Ml 7 0 Ml 7 1 0 Ml 1 5 3 (444.88 KiB) Viewed 77 times
Reaction Fe3+(aq), 0.0025 M SCN (aq), 0.0025 M HNO3(aq), 0.10 M Total Volume 6 1.0 mL 1.0 mL 5.0 mL 7.0 mL 7 1.0 mL 1.5 mL 4.5 mL 7.0 mL 00 8 1.0 mL 2.0 mL 4.0 mL 7.0 mL a 1.0 mL 2.5 mL 3.5 mL 7.0 mL 3.0 mL 1.0 mL 3.0 mL 10 7.0 mL 1.0 mL 2.0 mL 4.0 mL 7.0 mL 11 3.5 mL 1.5 mL 7.0 mL 12 2.0 mL 3.0 mL 2.0 mL 7.0 mL 2.0 mL 13 2.5 mL 2.5 mL 7.0 mL 2.0 mL 14 3.0 mL 2.0 mL 7.0 mL 2.0 mL 15
3+ [SCN] [Fe(SCN) leg [Feleq 2* (mol/L) (mol/L) (mol/L) [SCN leg (mol/L) K 8 -9 Table 2. Calculation of K [Fe3+) Test Tube 50 (mol/L) 51 6 52 7 53 8 54 9 55 10 56 11 57 12 58 13 59 14 60 15 61 Mean St. Dev. 62 63
Table 1. Data for Determination of Equilibrium Constant Test Tube Fe* V (ml) 3+ SCNV HNO3 V Total V (ml) Absorbance (ml) (ml) 6 1 1 5 7 0.023 7 1 1.5 4.5 7 0.087 8 1 2 4 7 0.142 1 9 1 1 2.5 3.5 7 0.234 2 10 1 3 3 7 0.297 3 11 1 4 7 0.314 -4 12 1.5 3.5 7 0.21 13 15 2 3 7 0.404 14 16 2.5 2.5 7 0.488 15 3 2 7 17 0.533 NNNNN