One of the factors that can affect the pH of a buffered solution is the molar ratio of the conjugate base and weak acid. Which of the following statement is correct?     "If the concentration of the conjugate base is higher than the weak acid, the pH will be less than the pKa."     "If the concentration of the conjugate base is less than the weak acid, the pH will be less than the pKa."     "If the concentration of the conjugate base is higher than the weak acid, the net change of the pH is going to the acidic side (lower pH)"     "If the concentration of the conjugate base is less than the weak acid, the net change of the pH is going to the basic side (higher pH)"

Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter17: Principles Of Chemical Reactivity: Other Aspects Of Aqueous Equilibria
Section: Chapter Questions
Problem 15PS: A buffer is composed of formic acid and its conjugate base, the formate ion. (a) What is the pH of a...
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One of the factors that can affect the pH of a buffered solution is the molar ratio of the conjugate base and weak acid. Which of the following statement is correct?
   
"If the concentration of the conjugate base is higher than the weak acid, the pH will be less than the pKa."
   
"If the concentration of the conjugate base is less than the weak acid, the pH will be less than the pKa."
   
"If the concentration of the conjugate base is higher than the weak acid, the net change of the pH is going to the acidic side (lower pH)"
   
"If the concentration of the conjugate base is less than the weak acid, the net change of the pH is going to the basic side (higher pH)"
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