Question

2. The reaction represented by the balanced chemical equation was studied at ( 25{ }^{circ} mathrm{C} ). The initial rate of reaction was determined by measuring the rates of change in the concentrations of ( mathrm{I}^{-} )(aq) and ( mathrm{S}_{2} mathrm{O}_{8}{ }^{2-} ) (aq) near the beginning of the reaction (Table 1). TI (6 marks) Table 1 Initial Rates from Runs at ( 25^{circ} mathrm{C} ) of the Reaction represented by [ 2 mathrm{I}_{(mathrm{aq})}^{-}+mathrm{S}_{2} mathrm{O}_{8}{ }^{2-}{ }_{(mathrm{aq})} ightarrow mathrm{I}_{2}(mathrm{aq})+2 mathrm{SO}_{4}{ }^{2-}{ }_{(mathrm{aq})} ] egin{tabular}{|c|c|c|l|} hline Trial & egin{tabular}{c} Initial ( left[mathrm{I}^{-} ight] ) \ ( mathrm{mol} / mathrm{L} ) end{tabular} & egin{tabular}{c} Initial ( left[mathrm{S}_{2} mathrm{O}_{8}{ }^{2-}{ }_{(mathrm{aq})]} mathrm{mol} / mathrm{L} ight. ) end{tabular} & egin{tabular}{l} Initial Rate \ ( (mathrm{mol} /(mathrm{L} ullet mathrm{s})) ) end{tabular} \ hline 1 & 0.080 & 0.040 & ( 12.50 imes 10^{-6} ) \ hline 2 & 0.040 & 0.040 & ( 6.25 imes 10^{-6} ) \ hline 3 & 0.080 & 0.020 & ( 6.25 imes 10^{-6} ) \ hline 4 & 0.032 & 0.040 & ( 5.00 imes 10^{-6} ) \ hline end{tabular} a) What is the rate equation for this reaction? b) What will the rate of reaction be when ( left[mathrm{I}^{-} ight]=0.060 mathrm{~mol} / mathrm{L} ) and ( left[mathrm{S}_{2} mathrm{O}_{8}{ }^{2-} ight]=0.030 mathrm{~mol} / mathrm{L} ) ?

          2. The reaction represented by the balanced chemical equation was studied at ( 25{ }^{circ} mathrm{C} ). The initial rate of reaction was determined by measuring the rates of change in the concentrations of ( mathrm{I}^{-} )(aq) and ( mathrm{S}_{2} mathrm{O}_{8}{ }^{2-} ) (aq) near the beginning of the reaction (Table 1). TI (6 marks)
Table 1 Initial Rates from Runs at ( 25^{circ} mathrm{C} ) of the Reaction represented by
[
2 mathrm{I}_{(mathrm{aq})}^{-}+mathrm{S}_{2} mathrm{O}_{8}{ }^{2-}{ }_{(mathrm{aq})} 
ightarrow mathrm{I}_{2}(mathrm{aq})+2 mathrm{SO}_{4}{ }^{2-}{ }_{(mathrm{aq})}
]
egin{tabular}{|c|c|c|l|}
hline Trial & egin{tabular}{c} 
Initial ( left[mathrm{I}^{-}
ight] ) \
( mathrm{mol} / mathrm{L} )
end{tabular} & egin{tabular}{c} 
Initial ( left[mathrm{S}_{2} mathrm{O}_{8}{ }^{2-}{ }_{(mathrm{aq})]} mathrm{mol} / mathrm{L}
ight. )
end{tabular} & egin{tabular}{l} 
Initial Rate \
( (mathrm{mol} /(mathrm{L} ullet mathrm{s})) )
end{tabular} \
hline 1 & 0.080 & 0.040 & ( 12.50 	imes 10^{-6} ) \
hline 2 & 0.040 & 0.040 & ( 6.25 	imes 10^{-6} ) \
hline 3 & 0.080 & 0.020 & ( 6.25 	imes 10^{-6} ) \
hline 4 & 0.032 & 0.040 & ( 5.00 	imes 10^{-6} ) \
hline
end{tabular}
a) What is the rate equation for this reaction?
b) What will the rate of reaction be when ( left[mathrm{I}^{-}
ight]=0.060 mathrm{~mol} / mathrm{L} ) and ( left[mathrm{S}_{2} mathrm{O}_{8}{ }^{2-}
ight]=0.030 mathrm{~mol} / mathrm{L} ) ?

2. The reaction represented by the balanced chemical equation was studied at ( 25 ^circ mathrmC ). The initial rate of reaction was determined by measuring the rates of change in the concentrations of ( mathrmI^- )(aq) and ( mathrmS2 mathrmO8 ^2- ) (aq) near the beginning of the reaction (Table 1). TI (6 marks)
Table 1 Initial Rates from Runs at ( 25^circ mathrmC ) of the Reaction represented by
[
2 mathrmI(mathrmaq)^-+mathrmS2 mathrmO8 ^2- (mathrmaq)
ightarrow mathrmI2(mathrmaq)+2 mathrmSO4 ^2- (mathrmaq)
]
egintabular|c|c|c|l|
hline Trial egintabularc
Initial ( left[mathrmI^-
ight] ) ( mathrmmol / mathrmL )
endtabular egintabularc
Initial ( left[mathrmS2 mathrmO8 ^2- (mathrmaq)] mathrmmol / mathrmL
ight. )
endtabular egintabularl
Initial Rate ( (mathrmmol /(mathrmL ullet mathrms)) )
endtabular hline 1 0.080 0.040 ( 12.50 imes 10^-6 ) hline 2 0.040 0.040 ( 6.25 imes 10^-6 ) hline 3 0.080 0.020 ( 6.25 imes 10^-6 ) hline 4 0.032 0.040 ( 5.00 imes 10^-6 ) hline
endtabular
a) What is the rate equation for this reaction?
b) What will the rate of reaction be when ( left[mathrmI^-
ight]=0.060 mathrm mol / mathrmL ) and ( left[mathrmS2 mathrmO8 ^2-
ight]=0.030 mathrm mol / mathrmL ) ?

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