In the titration of with : — Redox Reactions and Volumetric Analysis Chemistry Question

💡 Solution & Explanation

**Logic:** The titration is stepwise: $Na_2CO_3 + HCl \rightarrow NaHCO_3 + NaCl$ (pH ~8.3) and then $NaHCO_3 + HCl \rightarrow NaCl + H_2O + CO_2$ (pH ~3.7). Two distinct equivalence points exist. Ph is suitable for the first; MeOH for the total.