Ok so I'm confusing one thing with another, can someone help me understand and solve this problem?? I attached it as a pic

Question

vane11 · Answer

attachment

aaronq · Answer

To get the average rate of reaction, you need to find the change in conc. of the species in the time interval.

$\Delta rate_{rxn}=-\dfrac{1}{2}\dfrac{\Delta [N_2O_5]}{\Delta t}=-\dfrac{1}{2}\dfrac{[N_2O_5]_{final}-[N_2O_5]_{initial}}{t_f-t_i}$

vane11 · Answer

I think I got it while I was waiting for someone to help me, is this correct?
.989M/s
1.84M/s
2.25M/s

vane11 · Answer

wait nvm they're supposed to be to a certain power...

vane11 · Answer

ok is the first one 6.15x10^-4

aaronq · Answer

you're doing it right $\checkmark$

vane11 · Answer

phew ok I'll just keep following the formula you gave me, thanks again ^^

aaronq · Answer

no problem !