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anonymous

  • 4 years ago

Did a density lab, is it bad that I have an 11.1% error?

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  1. UnkleRhaukus
    • 4 years ago
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    over or under?

  2. anonymous
    • 4 years ago
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    over

  3. UnkleRhaukus
    • 4 years ago
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    how did you measure density

  4. anonymous
    • 4 years ago
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    With a ruler and triple beam balance

  5. UnkleRhaukus
    • 4 years ago
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    how many measurements did you take and to what uncertainty

  6. anonymous
    • 4 years ago
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    3 trials to the hundereths

  7. anonymous
    • 4 years ago
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    oh, +-.1 for volume, +/-.01 for mass

  8. UnkleRhaukus
    • 4 years ago
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    what was the substance that you were measurement what at were you comparing it to?

  9. UnkleRhaukus
    • 4 years ago
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    if your volume was of unit order, i.e, ~1 then your error comes almost entirely from your volume error

  10. anonymous
    • 4 years ago
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    oh, so I just messed up on the volume some how and did good on the mass?

  11. UnkleRhaukus
    • 4 years ago
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    well if you cannot measure your volume within 10% error, then an 11.1% eroor in your final measurement is fine

  12. UnkleRhaukus
    • 4 years ago
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    error*

  13. anonymous
    • 4 years ago
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    Gotcha, thanks so much

  14. UnkleRhaukus
    • 4 years ago
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    (there might be a simple way to reduce your error in volume measurement ; if you are measuring a unit cube, you could measure the length of 3 and then divide by three

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