Sig Figs on the Test

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905174774
Posts: 52
Joined: Wed Sep 18, 2019 12:20 am

Sig Figs on the Test

Postby 905174774 » Thu Oct 03, 2019 9:45 pm

This is more concerning the numbers on the periodic table. Should there be a limit of how many sig figs I should use if the number given on the periodic (like the molar mas) contains a lot of numbers?

Alexa Hernandez 3k
Posts: 74
Joined: Sat Sep 14, 2019 12:16 am
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Re: Sig Figs on the Test

Postby Alexa Hernandez 3k » Thu Oct 03, 2019 9:46 pm

For values of elements you cannot simplify. No significant figures, just use the number on the periodic table.

Brynne Burrows 3K
Posts: 52
Joined: Thu Jul 25, 2019 12:16 am

Re: Sig Figs on the Test

Postby Brynne Burrows 3K » Thu Oct 03, 2019 9:47 pm

You should use however many sig figs are given in the original problem, even when considering periodic table molar masses.

Rida Ismail 2E
Posts: 139
Joined: Sat Sep 07, 2019 12:16 am

Re: Sig Figs on the Test

Postby Rida Ismail 2E » Thu Oct 03, 2019 9:55 pm

Usually, in calculations of molar mass, you use the molar mass of each element to the hundredths decimal place, and add them all together. This does not count when determining the overall number of sig figs


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