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Author Question: The concentration of an aqueous solution of I3 can be determined by a redox titration with aqueous ... (Read 168 times)

rmenurse

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on: Feb 15, 2020



The concentration of an aqueous solution of I3⁻ can be determined by a redox titration with aqueous sodium thiosulfate, Na2S2O3:

2 S2O32- (aq) + I3⁻ (aq) + → S4O62- (aq) + 3 I⁻ (aq)


Assume that the black spheres in the buret represent S2O32- ions, the gray spheres in the flask represent I3- ions, the concentration of the S2O32- ions in the buret is 0.120 M, and the volumes in the buret and the flask are identical. What is the concentration of the I3- in the flask, and what fraction of the S2O32- solution in the buret must be added to the flask to react with all the I3- ions?
◦ 0.0400 M I3-; 1/3 of the S2O32- must be added.
◦ 0.0600 M I3-; 2/3 of the S2O32- must be added.
◦ 0.0400 M I3-; 2/3 of the S2O32- must be added.
◦ 0.0600 M I3-; 1/3 of the S2O32- must be added.
Chemistry ¦ McMurry, Fay, Robinson ¦ 7th Edition
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Marked as best answer by rmenurse on Feb 15, 2020

Ahernandez18

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Reply #1 on: Feb 15, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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rmenurse

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Reply 2 on: Feb 15, 2020
Wow, this really help

Zebsrer

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Reply 3 on: Yesterday
Gracias!

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