Why are sig figs important?

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Jennifer Ma 1G
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Why are sig figs important?

Postby Jennifer Ma 1G » Sun Apr 08, 2018 9:37 pm

I understand how the concept of significant figures work, but I just can't grasp why it is reiterated that we use them in chemistry related numbers. What is the purpose of significant figures?

nicknavejas1B
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Re: Why are sig figs important?

Postby nicknavejas1B » Sun Apr 08, 2018 9:47 pm

Im sure there are other reasons for sig figs being important, but from what ive gotten they are significant when trying to decide the degree of uncertainty. They allow for more accurate measurements and answers. Hope this helps.

Valeria Viera 1B
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Re: Why are sig figs important?

Postby Valeria Viera 1B » Sun Apr 08, 2018 9:48 pm

I believe we use them to be as exact as possible. For example, when measuring grams of a compound, one might get different results depending in how they round (sig figs are important in rounding).
Other than using them in actual lab, I think we use them so we know how to deal with decimals (there can be numbers with a lot of decimal places so we need to know where to stop).

Lily Emerson 1I
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Re: Why are sig figs important?

Postby Lily Emerson 1I » Sun Apr 08, 2018 10:23 pm

I guess sig figs are used to just so that we have a system to base our calculations off of such that we'll all get the same answer as long as we do it correctly. It limits the variation in how frequently we round and to which decimal place, which i guess helps to keep answers consistent across the board.

Mohamad Farhat 1L
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Re: Why are sig figs important?

Postby Mohamad Farhat 1L » Sun Apr 08, 2018 10:30 pm

I think sig figs are important when it comes down to math measurements.

Megan Phan 1K
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Re: Why are sig figs important?

Postby Megan Phan 1K » Sun Apr 08, 2018 10:47 pm

Significant figures are important because it normalizes different data sets throughout calculations, because as you do more calculations the data becomes less precise. Therefore, significant figures allow for more precision.

Yitzchak Jacobson 1F
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Re: Why are sig figs important?

Postby Yitzchak Jacobson 1F » Sun Apr 08, 2018 11:05 pm

I believe significant figures are extremely important, and they will seem very essential as you continue to use them. The reason why sig figs are so important is because it allows your calculations to be more accurate which leads to a better answer overall. I honestly feel like they are pretty essential as I solve my chem problems, and I really hope it works for you :)

Sarai Ventura 1L
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Re: Why are sig figs important?

Postby Sarai Ventura 1L » Wed Apr 11, 2018 9:18 am

I believe that sig figs are important in measurements because it allows to have a more accurate and precise calculation.They also let us know when it is okay to round.

004985802
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Re: Why are sig figs important?

Postby 004985802 » Thu Apr 12, 2018 7:56 pm

sig figs are important because they retain the accuracy of your calculations so that differences in measurement or calculation which could be a result of error will not impact the accuracy of your final result

005006577
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Re: Why are sig figs important?

Postby 005006577 » Sat Apr 14, 2018 8:57 pm

Significant figures are important because they allow us to keep track of the quality of measurements. Essentially, sig figs demonstrate how much to round, while also making sure that the answer is not more precise than our starting value. Sig figs help build accuracy and precision among answers because it limits the chance of bad data processing and most random events from occurring.

Ashwin Deena 1L
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Re: Why are sig figs important?

Postby Ashwin Deena 1L » Sun Apr 15, 2018 9:34 pm

Sig figs tell us where to round in the context of the problem. For example, if larger units with less sig figs are used, then the overall calculation would reflect this and in areas where small, precise measurements are used, it tells us where to cut off so instead of worrying about every digit we know where to stop.

Jada Larson 1F
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Re: Why are sig figs important?

Postby Jada Larson 1F » Sun Apr 15, 2018 9:52 pm

As explained to me by an undergraduate assistant, Significant Figures indicate uncertainty in measurements (because inherent error always exist in any tool).

Rummel Requerme 1E
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Re: Why are sig figs important?

Postby Rummel Requerme 1E » Sun Apr 15, 2018 10:12 pm

I also approached one of the TA's in a previous Chem class that I was enrolled in; it was said the SIg figs aid in how precise AND accurate our results will be. If we are inconsistent with the number of sig figs, that data that is calculated will end up being completely different from the actual solution.

VindyMurthy
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Re: Why are sig figs important?

Postby VindyMurthy » Sun Apr 15, 2018 11:03 pm

Significant figures are important mainly because they specify how accurate a measurement is. All the 0s after a decimal tell you how close the number is to being a whole number or an integer or how specific your data is.


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