In: Chemistry
A monoprotic acid, HA, with a Ka of 6.35 × 10-5 has a partition coefficient of 4.5 (favoring octanol) when distributed between water and octanol. Find the formal concentration of the acid in each phase when 100 mL of 0.100 M aqueous acid is extracted with 35 mL of octanol.
a. at pH 4.00
-in water ___ M -in octanol ___ M
b. at pH 9.00
-in water ___ M -in octanol ___ M