Calculator Periodic Table Question 2 of 31 General Chemistry 4th Edition Univers

Question

Calculator Periodic Table Question 2 of 31 General Chemistry 4th Edition University Science Books presented by Sapling Learning e decomposition of N2Os can be described by the equation t(s) | [N205] (M) 2.09 185 1.86 516 1.51 2N20,(sol ) 4N02(soln) +02(g) Given these data for the reaction at 45'C in carbon tetrachloride solution, 725 1.32 calculate the average rate of reaction for each successive time interval. Interval: 0s to 185 s 185 s to 516 s 516 s to 725 s Number Number Number Reaction rate: M/ s M/s M/s

Explanation / Answer

Reaction rate = (-1/2)*d[N2O5]/dt
Reaction rate = (-1/2)*(C2-C1)/(t2-t1)
Reaction rate = (C1-C2)/2*(t2-t1)

1) 0 s to 185 s
Reaction rate = (2.09-1.86)/2*(185-0)
= 0.23 M/370 s
= 6.22*10^-4 M/s

Answer: 6.22*10^-4 M/s

2) 185 s to 516 s
Reaction rate = (1.86-1.51)/2*(516-185)
= 5.29*10^-4 M/s

Answer: 5.29*10^-4 M/s

3)516 s to 725 s
Reaction rate = (1.51-1.32)/2*(725-516)
= 4.55*10^-4 M/s

Answer: 4.55*10^-4 M/s

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