Three lactic acid buffers (each 250 mL) are listed below
CHEMISTRY · Subjective · A Level · Chemistry · Acids and bases · Acids and bases
Problem
Three lactic acid buffers (each 250 mL) are listed below.
• Buffer G: 0.60 M HLac and 0.60 M Lac⁻
• Buffer H: 0.30 M HLac and 0.60 M Lac⁻
• Buffer I: 0.60 M HLac and 0.30 M Lac⁻
Rank the buffers from greatest to least in the number of moles of NaOH that can be added before the pH rises noticeably (assume a noticeable rise occurs once half of the neutralizing component is consumed). Use the format G > H > I, etc.