Sig Fig Question
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Sig Fig Question
In the textbook, I noticed numbers are sometimes written with a decimal at the end and no following digits, such as 350. pm. Is this to indicate that we should be using 3 sig figs instead of two (in this case)? Does that decimal make 350 3 sig figs instead of 2?
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Re: Sig Fig Question
Yes you're absolutely right! 350. will be 3 sigfigs and 350 without the decimal is 2 sigfigs.
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Re: Sig Fig Question
Correct, if its just 320 then there are only 2 sig figs in this case. If it was 320.0 it would be 3 sig figs.
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Re: Sig Fig Question
If you don't like that notation, another way to write 350 using 2 sig figs is using scientific notation. It would be 3.5x10^2.
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Re: Sig Fig Question
For anyone on this thread,
we don't need to worry about Sig Figs for the midterm!!
we don't need to worry about Sig Figs for the midterm!!
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Re: Sig Fig Question
It has 3 sig figs since the decimal is after the 0 in 350 and if there were not a decimal then 350 would only have two sig figs.
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Re: Sig Fig Question
Yes, the decimal was used to indicate that the measurement was precise up to that point, and that the 0 should be considered a significant figure.
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Re: Sig Fig Question
Yes you are correct. The reason there is a decimal after the 350. is to indicate 3 Sigfigs and not 2.
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Re: Sig Fig Question
Yes. Sig Figs count all numbers proceeding and preceding the decimal point, unless the only number before the decimal point is a 0, and 0's preceding a non-zero after a decimal point a not counted, only numbers following and including the non zero are counted. Ex: 0.00305 there are 3 sig figs, being 3, 0, and 5.
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