Ionic EquilibriumMedium
Question
A physician wishes to prepare a buffer solution at pH = 3.58 that efficiently resists a change in pH yet contains only small concentrations of the buffering agents. Which one of the following weak acid together with its sodium salt would be best to use?
Options
A.m-chloro benzoic acid (pKa = 3.98)
B.p-chlorocinnamic acid (pKa = 4.41)
C.2,5-dihydroxy benzoic acid (pKa = 2.97)
D.acetoacetic acid (pKa = 3.58)
Solution
For maximum buffer capacity, PH = PKa
Create a free account to view solution
View Solution FreeMore Ionic Equilibrium Questions
pH of water is 7.0 at 25oC. If water is heated to 70oC, the:...A solution contains 0.1 M – Mg2+ and 0.1 M – Sr2+. The concentration of H2CO3 in solution is adjusted to 0.05 M. Determi...The formation constant of Cu(NH3)42+ is 1.25 × 1012. What will be the equilibrium concentration of Cu2+ if 0.0125 moles ...An aqueous solution of a metal bromide MBr2 (0.04 M) is saturated with H2S. What is the minimum pH at which MS will prec...Which of the following is true...