An analytical chemist weighs out 0.165 g of an unknown triprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with 0.1900 M NaOH solution. When the titration reaches the equivalence point, the chemist finds he has added 26.6 mL of NaOH solution. Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of significant digits. 65.29 mol Correct Answer: 97.9 mol x10 X

An analytical chemist weighs out 0.165 g of an unknown triprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with 0.1900 M NaOH solution. When the titration reaches the equivalence point, the chemist finds he has added 26.6 mL of NaOH solution. Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of significant digits. 65.29 mol Correct Answer: 97.9 mol x10 X

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter9: Acids, Bases, And Salts

Section: Chapter Questions

Problem 9.97E

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