Sig Figs

Science questions not covered in Chem 14A and 14B. Try to limit questions to chemistry (inorganic chemistry, physical chemistry, organic chemistry, biophysical chemistry, biochemistry, materials science, environmental chemistry).

Moderators: Chem_Mod, Chem_Admin

ELu 1J
Posts: 51
Joined: Thu Jul 25, 2019 12:16 am

Sig Figs

Postby ELu 1J » Wed Jan 29, 2020 1:33 pm

When you have conversion factors in your calculations, do you also take the sig figs of those numbers into account? For example, 1L = 1000mL, would you take the sig figs into account when calculating the rest of the problem? Thanks!

Michael Nguyen 1E
Posts: 120
Joined: Sat Aug 17, 2019 12:17 am

Re: Sig Figs

Postby Michael Nguyen 1E » Wed Jan 29, 2020 2:25 pm

No, if the conversion is completely equal, you do not have to consider the sig figs. So in the example you provided, 1000 ml=1 L, you would not consider those sig figs. However, a conversion factor that is not completely equal, such as molar masses, would require you to consider those sig figs.

Tai Metzger 3K
Posts: 103
Joined: Sat Aug 24, 2019 12:17 am

Re: Sig Figs

Postby Tai Metzger 3K » Wed Jan 29, 2020 2:28 pm

No, base the sig figs off of the accuracy of information given to you, not known constants. I hope this helps!

Katie Kyan 2K
Posts: 106
Joined: Fri Aug 09, 2019 12:16 am
Been upvoted: 1 time

Re: Sig Figs

Postby Katie Kyan 2K » Wed Jan 29, 2020 3:35 pm

No you would not take into account the sig figs of conversion factors like the example you gave. Use the sig figs from the numbers the problem gives you instead.

Return to “General Science Questions”

Who is online

Users browsing this forum: No registered users and 1 guest