A study of the decomposition reaction 3RS2 yields 3R + 6S yields the following initial rate data

[RS2](molxL-1) Rate (mol/Lxs)
0.150 0.0394
0.250 0.109
0.350 0.214
0.500 0.438

What is the rate constant for the reaction?
I know that the rate constant is k, but what I'm confused about is which formula to use?

Question

A study of the decomposition reaction 3RS2 yields 3R + 6S yields the following initial rate data

[RS2](molxL-1)     Rate (mol/Lxs)
0.150                     0.0394
0.250                     0.109
0.350                     0.214
0.500                     0.438

What is the rate constant for the reaction?
I know that the rate constant is k, but what I'm confused about is which formula to use?

ookawaiioo · Answer

have you learned rate laws yet?

anonymous · Answer

yeah I did

anonymous · Answer

Rate law: - change [A]/ change in t

anonymous · Answer

We also learned about the zeroth, first, second and third rate laws too last night

ookawaiioo · Answer

i would just$$k=\frac{ Xfinal- Xinitial }{ Ratef - Rate initial }$$

ookawaiioo · Answer

http://www.youtube.com/watch?v=wyQEPWTGHao

ookawaiioo · Answer

This would be helpful

anonymous · Answer

Thanks. The video was a refresher.

ookawaiioo · Answer

Goodluck!