An analytical chemist weighs out 0.264 g of an unknown diprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with 0.1900M NaOH solution. When the titration reaches the equivalence point, the chemist finds he has added 18.5 mL of NaOH solution. Calculate the molar mass of the unknown acid. Round your answer to 3 significant digits. mol

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter1: The Nature Of Chemistry
Section: Chapter Questions
Problem 127QRT
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An analytical chemist weighs out 0.264 g of an unknown diprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. He then
titrates this solution with 0.1900M NAOH solution. When the titration reaches the equivalence point, the chemist finds he has added 18.5 mL of NaOH
solution.
Calculate the molar mass of the unknown acid. Round your answer to 3 significant digits.
x10
mol
Transcribed Image Text:An analytical chemist weighs out 0.264 g of an unknown diprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with 0.1900M NAOH solution. When the titration reaches the equivalence point, the chemist finds he has added 18.5 mL of NaOH solution. Calculate the molar mass of the unknown acid. Round your answer to 3 significant digits. x10 mol
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