Posted by Hannah on Thursday, March 8, 2012 at 10:13pm.
If the time elapsed is 4.26 min, what is the value of the rate constant, k?
ln[R]t / [R]o = 0.0237
I am not sure how to slove this.
Would I do ln 4.26 minutes times 0.0237???

chemistry(?)  drwls, Friday, March 9, 2012 at 1:21am
How are you defining k?
Are you taking the ln of [R] or of [R(t)]/R(0)] ?
Is [R] the concentration of a reactant?
This looks like an equation for firstorder chemical decomposition or radioactive decay.
If [R(t)] = [Ro]e^kt, then
ln{[R(t)]/R(0)]} = kt
If kt = 0.0237 when t = 4.26 min, then
k = 5.56*10^3 min^1 
Math(Please answer just a quick question!!!!)  Hannah, Friday, March 9, 2012 at 6:56pm
Ok how did you get 5.56e3???