How is the conditional formation constant (K'ₒ) calculated in an EDTA titration?

• A. By multiplying the fraction of EDTA in its basic form by the stability constant.
• B. By dividing the stability constant by the fraction of EDTA in its basic form.
• C. By adding the fraction of EDTA in its basic form to the stability constant.
• D. By subtracting the fraction of EDTA in its basic form from the stability constant.

Answer: (A)