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Significant Figures

Definition: Measurement with Sig Figs: . Digits in a measurement that have meaning relative to the equipment being used. Digits that can be known precisely plus a last digit that must be estimated. Depends on the equipment being used to measure. Significant Figures.

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Significant Figures

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  1. Definition: Measurement with Sig Figs: Digits in a measurement that have meaning relative to the equipment being used. Digits that can be known precisely plus a last digit that must be estimated. Depends on the equipment being used to measure. Significant Figures

  2. Pacific to Atlantic Rule Decimal Present Start from Pacific, every digit beginning w/ first non-zero digit is significant How many sig figs? 20.0g 0.000568cl 1000. cm Significant Figures

  3. Atlantic to Pacific Rule Decimal Absent Start from Atlantic, every digit beginning with a nonzero digit is significant. How many sig figs? 100020g 1000g 13250g Significant Figures

  4. Calculations using Sig Figs Addition/Subtraction Example: Multiplication/ Division Example Limit and round to the least precise place 123.25mL + 46.0mL +86.257mL = Limit and round to the least # of significant figures. 23.0cm x 432cm x19cm = Measurement Notes – Sig Figs

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