Logs & Ln on the Pcat

[Lasche]

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Logs & Ln's are on the Pcat right?
I know that we can't use calculators, and I'm having trouble with natural logs needed to calculate rate equations. Can anyone help?
How do I find Ln(.88)?

Thanks

 

[tivon]

Logs & Ln's are on the Pcat right?
I know that we can't use calculators, and I'm having trouble with natural logs needed to calculate rate equations. Can anyone help?
How do I find Ln(.88)?

Thanks

Ln 1 =0
0.88< 1, so Ln0.88 is a negative number and close to 0
thus, ln 0.88 can be-0.10 or -0.2
You have to estimate.

 

[Lasche]

Thanks! That makes sense.

 

[Lnguyen1231]

U R Soo Right..tivo...that's What I Thought, Too....very Good...

 

[hitmenow]

there was no logs on the pcat when i took it.

 

[PharmMnM]

log is calculus 2. the pcat only covers calc 1 am i right. actually i guess it depends on what book. for steward its up to log.

 

[ForcedEntry]

The basic log properties you need are from Algebra

 

[GRslp]

So basically you're say just know the rules, right? Like Log AB = Log A + Log B, etc...

 

[camjames]

if you know log base 10 better, you can convert logx to lnx....
(2.3)logx~lnx