Significant Figures usage confusion

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Matt Sanruk 2H
Posts: 131
Joined: Wed Sep 18, 2019 12:21 am

Significant Figures usage confusion

Postby Matt Sanruk 2H » Mon Sep 30, 2019 11:54 pm

How do I know how many sig figs I should be using?
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Jialun Chen 4F
Posts: 108
Joined: Sat Sep 07, 2019 12:16 am

Re: Significant Figures usage confusion

Postby Jialun Chen 4F » Tue Oct 01, 2019 12:00 am

For multiplication and division, the answer should have the same significant figure as the smaller number. For e.g., 2.0 mol/2.00L= 1.0M.
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Matt Sanruk 2H
Posts: 131
Joined: Wed Sep 18, 2019 12:21 am

Re: Significant Figures usage confusion

Postby Matt Sanruk 2H » Tue Oct 01, 2019 12:01 am

Would this also apply to adding and subtracting?
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Jialun Chen 4F
Posts: 108
Joined: Sat Sep 07, 2019 12:16 am

Re: Significant Figures usage confusion

Postby Jialun Chen 4F » Tue Oct 01, 2019 12:07 am

Addition and subtraction have a slightly different rule: you utilize the smallest decimal places instead of the smallest sig figs.
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Matt Sanruk 2H
Posts: 131
Joined: Wed Sep 18, 2019 12:21 am

Re: Significant Figures usage confusion

Postby Matt Sanruk 2H » Tue Oct 01, 2019 12:12 am

Ahhh I see thats how it works! Thank you very much Jialun Chen!! I will for sure utilize this in my problems thank you!
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Jialun Chen 4F
Posts: 108
Joined: Sat Sep 07, 2019 12:16 am

Re: Significant Figures usage confusion

Postby Jialun Chen 4F » Tue Oct 01, 2019 12:19 am

You are very welcome! I am glad that helped.
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Matt Sanruk 2H
Posts: 131
Joined: Wed Sep 18, 2019 12:21 am

Re: Significant Figures usage confusion

Postby Matt Sanruk 2H » Tue Oct 01, 2019 12:32 am

If I have any further inquiries I can depend on you!
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