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    Hi All,

    I'm trying to work out percentage error for a chemistry practical i have done.

    i gathered all the info about the percentage uncertainty elasticated with the equipment i used.

    I know you have to do percentage uncertainty/ reading * 100

    HOWEVER...Do i have to do this for every single measurement i did.

    For example if i did a titration, do i have to work it out for every average titre value if i did 3 titre readings?

    Or For example if a measured something using a 25cm3 graduated pipette do i have to count how may times i did this and work it out for every single time??

    PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!
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    Yes, each reading has it's error and you have to add them up.
    I agree though, that percentage error is a pain.
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    (Original post by fibrebiz)
    Yes, each reading has it's error and you have to add them up.
    I agree though, that percentage error is a pain.
    I see so do i have to work out the error for say each of the 3 readings of 'time readings'

    OR can i work it out for the average of those three 'time readings'
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    Tough one - I got a C at AS so I'm not a good person to rely on
 
 
 
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