Based on information provided, could you please answer only question B? (Please show your work) Na2S203 Initial Flask 1 Flask 2 Flask 3 14.15 28.04 Final 27.07 43.85 31.06 49.87 KBr03 Flask 1 Flask 2 Flask 3 Initial 40 35.20 41.2 Final 60 45.22 51.2 Concentration of Na2S203: 0.0898M Concentration of KBr03: 0.020M Concentration of NH3OhHCI: 0.02M Calculations a) For each of the three sets of data calculate the number of moles of KBr03 initially delivered into each flask, considering the volume of KBr03 delivered and its concentration. From the result of the titration of unreacted KBr03 with Na2S203, find the number of moles of KBr03 remaining in the solution at the end of the 10-minute reaction period. The difference between these two values gives the number of moles of KBr03 which reacted with the hydroxylammonium ion. Calculate the average of the three values for the moles of KBr03 which
Based on information provided, could you please answer only question B? (Please show your work) Na2S203 Initial Flask 1 Flask 2 Flask 3 14.15 28.04 Final 27.07 43.85 31.06 49.87 KBr03 Flask 1 Flask 2 Flask 3 Initial 40 35.20 41.2 Final 60 45.22 51.2 Concentration of Na2S203: 0.0898M Concentration of KBr03: 0.020M Concentration of NH3OhHCI: 0.02M Calculations a) For each of the three sets of data calculate the number of moles of KBr03 initially delivered into each flask, considering the volume of KBr03 delivered and its concentration. From the result of the titration of unreacted KBr03 with Na2S203, find the number of moles of KBr03 remaining in the solution at the end of the 10-minute reaction period. The difference between these two values gives the number of moles of KBr03 which reacted with the hydroxylammonium ion. Calculate the average of the three values for the moles of KBr03 which
Chapter10: Reconstitution Of Powdered Drugs
Section: Chapter Questions
Problem 7.8P
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Transcribed Image Text:Based on information provided, could
you please answer only question B?
(Please show your work)
Na2S203
Flask 1
Flask 2
Flask 3
Initial
14.15
28.04
Final
27.07
43.85
31.06
49.87
KBr03
Flask 1
Flask 2
Flask 3
Initial
40
35.20
41.2
Final
60
45.22
51.2
Concentration of Na2S203: 0.0898M
Concentration of KBr03: 0.020M
Concentration of NH3OhHCI: 0.02M
Calculations
a) For each of the three sets of data calculate the number of moles of KBr03 initially delivered
into each flask, considering the volume of KBr03 delivered and its concentration. From the
result of the titration of unreacted KBr03 with Na2S203, find the number of moles of KBr03
remaining in the solution at the end of the 10-minute reaction period. The difference between
these two values gives the number of moles of KBr03 which reacted with the
hydroxylammonium ion. Calculate the average of the three values for the moles of KBr03 which
reacted.
b) Find the number of moles of electrons which must have been transferred between Br03- and
NH3OH during the reaction. In order to do this, you must take into account the change in
oxidation state which the Br undergoes when bromate reacts to become bromide.
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