#12 Achieve Week 9-10

[Elise_Watson_2F]

For this problem, do we set up a table like in the other problems that establish what order it is in or is there a simpler way to go about it?

[Kaija Frassrand 2F]

I think the best way to solve this problem is to create a table like in the other problems, yes.

[Jordan Guzman 3A]

For this question I noticed that the half life depends on the initial concentration so I thought that it was either a zero or second order reaction. Then I tested both scenarios using zero order half life equation to see if the rate constants were equal to each other. I found that they were not so I tested second order using the second order half life equation and found the rate constants to be the same. Since the rate constants are the same we can conclude that the reaction is second order.

[Euri Lopez 3H]

The way I did it was knowing it can be first order because the half life changes with concentration change. We know it not zero order because the half life should have decreased with a decrease in concentration. So we know it second order. Which makes sense because it is the only one with a inverse relationship with concentration.