Percentages Sig Figs?  [ENDORSED]

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carrie_shih_3L
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Joined: Fri Sep 25, 2015 3:00 am

Percentages Sig Figs?

Postby carrie_shih_3L » Sun Oct 04, 2015 11:25 pm

If the question is asking for percentages (ex. Percentage composition of a molecule) do we always provide up to two decimal places (ex. ##.##%) ?

Chem_Mod
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Re: Percentages Sig Figs?

Postby Chem_Mod » Sun Oct 04, 2015 11:53 pm

Do the sig figs normally, so if you need 4 sig figs then it would be xx.xx%

704628249
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Re: Percentages Sig Figs?

Postby 704628249 » Wed Dec 02, 2015 6:13 pm

You would just put as many sigfigs as are provided in the question.

Alondra Loera 1A
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Joined: Fri Sep 25, 2015 3:00 am

Re: Percentages Sig Figs?  [ENDORSED]

Postby Alondra Loera 1A » Thu Dec 03, 2015 10:26 pm

Do as you typically would so, for example, if you are given the following numbers
544.60
6.005
0.00343

Multiplying or dividing using these numbers results in three sig. figs because
544.60 --> 5 sig.figs
6.005 --> 4 sig.figs
0.00343 --> 3 sig.figs

Your answer would have to be XX.X % with only 3 sig.figs.

Arianna Brooks 4A
Posts: 18
Joined: Wed Sep 21, 2016 2:57 pm

Re: Percentages Sig Figs?

Postby Arianna Brooks 4A » Wed Sep 28, 2016 8:56 pm

So for your final answer to any problem, you're only supposed to use the least amount of sig figs as were provided in the problem? Like if the problem mentions numbers with 3, 4, and 5 sig figs, our answer only needs to have 3 sig figs?

Natalie Hunt 1E
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Re: Percentages Sig Figs?

Postby Natalie Hunt 1E » Fri Sep 30, 2016 12:07 am

Yes, you always base it off of the lowest amount of sig figs that were given in the problem.


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