Friday

January 30, 2015

January 30, 2015

Posted by **Hannah** on Thursday, March 8, 2012 at 10:13pm.

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 1:21amHow 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 first-order 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 6:56pmOk how did you get 5.56e-3???

**Answer this Question**

**Related Questions**

Math - If the time elapsed is 4.26 min, what is the value of the rate constant, ...

Chemistry(Please help, thank you!) - If the time elapsed is 4.26 min, what is ...

Chemistry(Please, please help) - If the time elapsed is 4.26 min, what is the ...

Chemistry - If the time elapsed is 4.26 min, what is the value of the rate ...

math - jason leaves detroit at 2 pm at a constant speed. he passes ann arbor, 40...

calculus: related rates - hello, please help me. A cylindrical can is being ...

Geo - Just a quick question that will help me in my essay. I just need a quick ...

physics - A car accelerates from rest at a constant rate A for some time after ...

physics - A car accelerates from rest at a constant rate A for some time after ...

Chemistry(Please check) - The units of a rate constant for zero, first, and ...