jihyunjun12

5+ Year Member
Jun 17, 2009
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u know the redox reactions have ln in their equations? well if i plug in the numbers, how do i solve the questions? i am so not used to solve the equation without calculator. and i have my dat in a week. help

also, whats the difference between ln and log?
 
May 15, 2009
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u know the redox reactions have ln in their equations? well if i plug in the numbers, how do i solve the questions? i am so not used to solve the equation without calculator. and i have my dat in a week. help

also, whats the difference between ln and log?
Log(a) = Logarithm of (a) with base 10.
Ln(a) = Logarithm of (a) with base e.

I believe the following is the formula you're referring to:
Ecell = Ecell (standard) - RT/n*LnQ
If so, then you can rewrite this equation like:
Ecell = Ecell (standard) - 0.059/n*LogQ

Now, you don't have to calculate Ln, you should only calculate Log with base 10, which is much easier.