Mass of emptyweighing paperMass of weighingpaper + unknownMass of unknownTrial 1Trial IITrial III0.8492.90g0.83g2.8792.04g0.85g2.90g2.05g2.06gVolume of H2SO420.00 mL20.00 mL20.00 mLInitial buret reading,Vinitial0.5mlFinal buret reading, 32.6mlV finalVolume of NaOHused for titration(Vinitial - Vfinal)32.1m0.1ml0.5ml32.2ml 30.7ml32.1ml 30.2ml For each trial, determine the % Na2CO3 in the sample and determine an average% Na2CO3 in the sample.

The titration is between sodium carbonate (Na₂CO₃) and sulfuric acid (H₂SO₄). The reaction…

Answered: Mass of empty weighing paper Mass of…

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter5: Errors In Chemical Analyses

Section: Chapter Questions

Problem 5.9QAP

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Question

Mass of empty
weighing paper
Mass of weighing
paper + unknown
Mass of unknown
Trial 1
Trial II
Trial III
0.849
2.90g
0.83g
2.879
2.04g
0.85g
2.90g
2.05g
2.06g
Volume of H2SO4
20.00 mL
20.00 mL
20.00 mL
Initial buret reading,
Vinitial
0.5ml
Final buret reading, 32.6ml
V final
Volume of NaOH
used for titration
(Vinitial - Vfinal)
32.1m
0.1ml
0.5ml
32.2ml 30.7ml
32.1ml 30.2ml

For each trial, determine the % Na2CO3 in the sample and determine an average
% Na2CO3 in the sample.

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