April 14, 2021, 07:05:04 PM
Forum Rules: Read This Before Posting

### Topic: Plotting Natural Log of Concentration versus Time  (Read 6226 times)

0 Members and 1 Guest are viewing this topic.

#### ran2much

• Very New Member
• Posts: 1
• Mole Snacks: +0/-0
##### Plotting Natural Log of Concentration versus Time
« on: July 26, 2007, 04:46:59 PM »
Hi All,

How do I calculate the natural log of concentration vs time?  Do I simply press "ln" on the calulator followed by the concentration to obtain the natural log or do i have to use something like:

ln[A] = -kt +ln [A] sub o

mind u, i dont know the k, but i do know conc of the product and time...

« Last Edit: July 26, 2007, 06:32:41 PM by ran2much »

#### sdekivit

• Chemist
• Full Member
• Posts: 403
• Mole Snacks: +32/-3
• Gender:
• B.Sc Biomedical Sciences, Utrecht University
##### Re: Plotting Natural Log of Concentration versus Time
« Reply #1 on: July 26, 2007, 06:16:20 PM »
you can use normal graph axes and plot the ln-values of [A] against the time

the result will be a linear curve with the interception on the y-axis = ln[A]0 or [A]0 with slope = -k