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# Average Reaction Rate and Stoichiometry

CHEM-Y7@86C

Consider the following data for the reaction $2{N}_{2}{O}_{5} \rightarrow 4{N}{O}_{2} + {O}_{2}$

time (s) [${N}_{2}{O}_{5}$] (M)
0.0 0.750
30.0 0.679
60.0 0.615
90.0 0.556
120.0 0.503
150.0 0.455


Calculate the average rate of change of $[{O}_{2}]$ for the time interval 30.0 s - 90.0 s.

Your answer should have units of $\frac{M}{s}$.