1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Uncertainty in labs

  1. Sep 25, 2008 #1
    *Actual yield of C₉H₈O₄: 0.11 g ± 5,8%
    *Theoretical yield of C₉H₈O₄: 0.25 g

    *Percent yield: (0.11/0.25)x100 = 43% ± 5,8%

    Have I done anything wrong when taking the percent error down?
  2. jcsd
  3. Sep 25, 2008 #2


    User Avatar
    Science Advisor
    Gold Member

    Thought this might help.
    Last edited by a moderator: Apr 23, 2017
  4. Sep 29, 2008 #3
    The equation to find % error is

    (abs(theoretical - measured/actual)/theoretical)*100=%error

    abs=absolute value
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook