Which of the following would be the best choice to prepare a buffer with pH = 3.00 ? A. C5H5N: C5H5NCI (pK₁ for C5H5N = 8.76) B. NH3: NH4CI (pkb for NH3 = 4.75) C. HNO₂: NaNO2 (pK₂ for HNO₂ = 3.33) D. C₂H/N : C₂H7NCI (PK for C₂H/N = 3.25) E. HCO₂H: HCO₂Na (pKa for HCO₂H = 3.74)

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.