Following the experimental procedure, a student combined 5.00 mL of 0.0020 M Fe3+ and 1.00 mL of 0.0020 M SCN- with 4.00 mL of water to create their Trial 1 solution. The student used their spectrophotometer to measure the absorbance of the reaction mixture and recorded an absorbance of 0.095. a. The initial concentration of Fe3+: M (give to nearest 0.0001 M) b. The initial concentration of SCN-: M (give to nearest 0.0001 M) c. The equilibrium concentration of FeSCN2+: (give as decimal to nearest 0.000 001) Hint: The extinction coefficient of FeSCN2+ is 4,630 M-1*cm-1 and the cuvettes we use have a path length of 1.0 cm
Following the experimental procedure, a student combined 5.00 mL of 0.0020 M Fe3+ and 1.00 mL of 0.0020 M SCN- with 4.00 mL of water to create their Trial 1 solution. The student used their spectrophotometer to measure the absorbance of the reaction mixture and recorded an absorbance of 0.095.
a. The initial concentration of Fe3+: M (give to nearest 0.0001 M)
b. The initial concentration of SCN-: M (give to nearest 0.0001 M)
c. The equilibrium concentration of FeSCN2+: (give as decimal to nearest 0.000 001)
Hint: The extinction coefficient of FeSCN2+ is 4,630 M-1*cm-1 and the cuvettes we use have a path length of 1.0 cm.
d. The equilibrium concentration of Fe3+: M (give as decimal to nearest 0.000 001 M)
e. The equilibrium concentration of SCN-: M (give as decimal to nearest 0.000 001 M)
f. The equilibrium constant K: (give to nearest tens place)
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