Chemical Forums

Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: stopkillingme21 on July 20, 2017, 04:19:08 PM

Title: Avoiding over/underflow Error on Calculator?
Post by: stopkillingme21 on July 20, 2017, 04:19:08 PM

I'm calculating the equilibrium constant using k = e^nFE/RT

The current problem I'm typing in is e^ (3)(96485)(1.29)/(8.314)(298)

It should return 2.84x10^65; however, everytime I attempt it, I get an overflow error.

How do you avoid this error on a non-graphing scientific calculator?

Title: Re: Avoiding over/underflow Error on Calculator?
Post by: chenbeier on July 21, 2017, 12:36:08 AM

What do you get if you type e^150,71?

Title: Re: Avoiding over/underflow Error on Calculator?
Post by: sjb on July 21, 2017, 10:48:00 AM

See also https://www.reddit.com/r/EngineeringStudents/comments/6oj0nv/avoiding_overunderflow_error_on_calculator/ and https://www.reddit.com/r/chemhelp/comments/6oiy8b/avoiding_overunderflow_on_calculator/