February 25, 2017

Homework Help: chem -please help!!!!!!!!!!!!

Posted by ron on Monday, September 10, 2012 at 11:12pm.

An unknown compound, X, is though to have a carboxyl group with a pKa of 2.0 and another ionizable group with a pKa between 5 and 8. When 75 mL of 0.1M NaOH is added to 100 mL of a 0.1M solution of X at pH 2.0, the pH increases to 6.72. Calculate the pKa of the second ionizable group of X. Can someone please tell me how do I know that at the initial pH the carboxylic acid will be 50% dissociated?

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions