(4113011 5. A monoprotic acid (HA) with K, of 8.76 x 10 has a partition coefficient of 3.9 (favoring octanol) when distributed between water and octanol, An aqueous solution (100.0 ml, pH 4.50) initially containing a 0.200 M formal concentration of HA is extracted once using 30.0 ml of octanol. a) What is the extraction efficiency? b) Calculate the formal concentration of the acid in both the water phase and the octanol phase after performing the extraction. Fwater = Foctanol = c) Would the extraction efficiency increase, decrease, or not change if the pH of the aqueous phase is adjusted to 7.00 prior to performing the extraction? Circle one: increase decrease no change Briefly explain:

(4113011 5. A monoprotic acid (HA) with K, of 8.76 x 10 has a partition coefficient of 3.9 (favoring octanol) when distributed between water and octanol, An aqueous solution (100.0 ml, pH 4.50) initially containing a 0.200 M formal concentration of HA is extracted once using 30.0 ml of octanol. a) What is the extraction efficiency? b) Calculate the formal concentration of the acid in both the water phase and the octanol phase after performing the extraction. Fwater = Foctanol = c) Would the extraction efficiency increase, decrease, or not change if the pH of the aqueous phase is adjusted to 7.00 prior to performing the extraction? Circle one: increase decrease no change Briefly explain:

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter3: Statistical Tests With Excel

Section: Chapter Questions

Problem 10P

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