1 mL of 0.115 M solution of NaOH is required for the end point using bromocresol…
CHEMISTRY · Subjective · A Level · Chemistry · Acids and bases · Acids and bases
Problem
1 mL of 0.115 M solution of NaOH is required for the end point using bromocresol green for 25 mL of 0.107 H3PO4. If the indicator phenolphthalein is used then 46.2 mL of same NaOH requires 25 mL of 0.107 M H3PO4. What is the ratio of replaceable H-atom in phenolphthalein and bromocresol indicators titrations?