6. Chemical Quantities & Aqueous Reactions
Balancing Redox Reactions: Acidic Solutions
A bronze sample was subjected to preceding analysis. The reactions involved have the following unbalanced equations:
Sn2+(aq) + IO3−(aq) → I2(aq) + Sn4+(aq)
I2(aq) + S2O32−(aq) → I−(aq) + S4O62−(aq)
If 3.6218 g of sample needs 11.26 mL of 0.1300 M Na2S2O3, what is the mass percent of tin in the sample?