Use table to answer following questions: In this experiment, you assumed that [S 2 O 8 2- ] [S 2 O 3 2- ].

Use table to answer following questions:

1. In this experiment, you assumed that [S2O82–] >> [S2O32–]. To find out if this assumption is correct, calculate the ratio of [S2O82–] / [S2O32–] for Trial 3. (In Trial 3, the [S2O82–] was lowest, and therefore the ratio [S2O82–] / [S2O32–] is the smallest).

2. In this experiment, you assumed that only a small amount of S2O82– was used during the time trial so that the concentration of this reactant did not change appreciably during the course of the reaction. Calculate how much S2O82– was used in Trial 3 and the percent remaining at the end of the reaction. Was this assumption valid?  

PLEASE EXPLAIN-