Significant figures Clarification  [ENDORSED]

Moderators: Chem_Mod, Chem_Admin

Carlos Gonzales 1H
Posts: 50
Joined: Fri Sep 29, 2017 7:05 am
Been upvoted: 1 time

Significant figures Clarification

Postby Carlos Gonzales 1H » Sun Oct 08, 2017 4:51 pm

Let's say that in a question you are given a value with 3 significant figures. Would you have to go to 3 significant figures after every calculation? Or would you round at the very end of all the calculations?

Justin Bui 2L
Posts: 51
Joined: Fri Sep 29, 2017 7:06 am

Re: Significant figures Clarification  [ENDORSED]

Postby Justin Bui 2L » Sun Oct 08, 2017 5:01 pm

I think it would be safer to keep a lot of sig figs (more than 3 in your example) and then at the end, round it to 3 sig figs so that the calculations will be as accurate as possible. Sometimes it might not make a difference but it is more accurate.

Carlos Gonzales 1H
Posts: 50
Joined: Fri Sep 29, 2017 7:05 am
Been upvoted: 1 time

Re: Significant figures Clarification

Postby Carlos Gonzales 1H » Sun Oct 08, 2017 5:35 pm

Oh I see, so if I come up with a number that has, say 7 digits, I'd go to maybe 4 for the rest of the calculations and then at the end go to 3 significant figures?

Dang Lam
Posts: 55
Joined: Thu Jul 27, 2017 3:01 am

Re: Significant figures Clarification

Postby Dang Lam » Sun Oct 08, 2017 9:19 pm

What I would do is that I would write down all the digits in the first calculation and carry them all the way down to the final answer. Then I round it


Return to “Significant Figures”

Who is online

Users browsing this forum: No registered users and 3 guests