An analytical chemist weighs out 0.162 g of an unknown triprotic acid into a 250 mL volumetric flask and dilutes it to the mark

Question

An analytical chemist weighs out 0.162 g of an unknown triprotic acid into a 250 mL volumetric flask and dilutes it to the mark with distilled water. She then titrates this solution with 0.0600 M NaOH solution. When the titration reaches the equivalence point, the chemist finds she has added 82.7 mL of NaOH solution. Calculate the molar mass of the unknown acid.

Kunduz · Accepted Answer

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