Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter13: Electrochemistry
Section: Chapter Questions
Problem 13.30PAE
Related questions
Question
Molarity of Na2S2O3 (stock solution). 0.100 M
Volume of diluted bleach titrated (taken from the volumetric flask). 10ml
Initial Burette Reading. 14.80
Final Burette Reading 25.60
Volume of Na2S2O3 used in the titration (mL). 10.80
Moles of Na2S2O3 used in the titration. 1.71
Moles of S2O3–2 used. 1.66
Moles of I2 initially present in titration mixture 0.83
Moles of NaOCl in the diluted bleach titrated. 0.415
Mass of NaOCl in the diluted bleach titrated. ?
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