An analytical chemist weighs out 0.279 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 0.1400M NaOH solution. When the titration reaches the equivalence point, the chemist finds he has added 33.8 mL of NaOH solution. Calculate the molar mass of the unknown acid. Round your answer to 3 significant digits. mol

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O SIMPLE REACTIONS
Determining the molar mass of an acid by titration
Jacque
An analytical chemist weighs out 0.279 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 0.1400M NaOH solution. When the titration reaches the equivalence point, the chemist finds he has added 33.8 mL of NaOH
solution.
Calculate the molar mass of the unknown acid. Round your answer to 3 significant digits.
mol
fo
Exnation
Check
|Privecy
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Transcribed Image Text:O SIMPLE REACTIONS Determining the molar mass of an acid by titration Jacque An analytical chemist weighs out 0.279 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 0.1400M NaOH solution. When the titration reaches the equivalence point, the chemist finds he has added 33.8 mL of NaOH solution. Calculate the molar mass of the unknown acid. Round your answer to 3 significant digits. mol fo Exnation Check |Privecy 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use MacBook Air
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