Two 500.0 mL buffers at 25 °C use the same monoprotic acid HA (pKa = 5.00): • Buffer…
CHEMISTRY · Subjective · A Level · Chemistry · Acids and bases · Acids and bases
Problem
Two 500.0 mL buffers at 25 °C use the same monoprotic acid HA (pKa = 5.00):
• Buffer D: 0.10 M HA and 0.10 M NaA
• Buffer E: 0.40 M HA and 0.40 M NaA
Determine the ratio E : D of the minimum moles of NaOH(s) required to raise the pH of each buffer by 1.00 unit. Express the ratio as a single number.