Calculate pFe₂ at one of the points (shown below) and the conditional formation constant in the titration of 25.00 ml of 0.02273 M Fe₂ by 0.03507 M.
a) pFe₂ = 7.21, Conditional Formation Constant = 1.89 x 10⁹
b) pFe₂ = 5.89, Conditional Formation Constant = 2.45 x 10⁸
c) pFe₂ = 6.75, Conditional Formation Constant = 3.10 x 10⁷
d) pFe₂ = 8.12, Conditional Formation Constant = 5.27 x 10¹0