The peroxydisulfate ion (S208-2) reacts with the iodide ion in aqueous solution via the eaction: S2O82-(g9) + 31- → 2SO4(gg+ 13 (g9). An aqueous solution containing 0.050 M of S2O8-2 ior and 0.072 M of l-is prepared, and the progress of the reaction followed by measuring [1-]. he data obtained is given in the table below. Time (s) H (M) 0.00 400.0 800.0 1200.0 1600.0 0.072 0.057 0.046 0.037 0.029 A. Determine the average rate of disappearance of I- between 400.0 s and 800.0 s in M/s. S. Determine the average rate of disappearance of l- in the initial 400.0 s in M/s.

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The peroxydisulfate ion (S208-2) reacts with the iodide ion in aqueous solution via the
reaction: S2082-(gg) + 31- → 2SO4(gg)+ 13-(99). An aqueous solution containing 0.050 M of S2O8-2 ion
and 0.072 M of l-is prepared, and the progress of the reaction followed by measuring [l-].
The data obtained is given in the table below.
Time (s)
(M)
1600.0
0.029
0.00
400.0
800.0
1200.0
0.072
0.057
0.046
0.037
A. Determine the average rate of disappearance of I- between 400.0 s and 800.0 s in M/s.
B. Determine the average rate of disappearance of l- in the initial 400.0 s in M/s.
C. Determine the average rate of disappearance of I- between 1200.0 s and 1600.0 s in M/s.
D. Determine the concentration of S2O82- remaining at 400 s in M.
E. Determine the concentration of S2O82- remaining at 800 s in M.
Transcribed Image Text:The peroxydisulfate ion (S208-2) reacts with the iodide ion in aqueous solution via the reaction: S2082-(gg) + 31- → 2SO4(gg)+ 13-(99). An aqueous solution containing 0.050 M of S2O8-2 ion and 0.072 M of l-is prepared, and the progress of the reaction followed by measuring [l-]. The data obtained is given in the table below. Time (s) (M) 1600.0 0.029 0.00 400.0 800.0 1200.0 0.072 0.057 0.046 0.037 A. Determine the average rate of disappearance of I- between 400.0 s and 800.0 s in M/s. B. Determine the average rate of disappearance of l- in the initial 400.0 s in M/s. C. Determine the average rate of disappearance of I- between 1200.0 s and 1600.0 s in M/s. D. Determine the concentration of S2O82- remaining at 400 s in M. E. Determine the concentration of S2O82- remaining at 800 s in M.
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