When you calculate results that are aiming for known values,
the percent error formula
is useful tool for determining the precision of your calculations. The formula
is given by: The experimental value is your calculated value, and the
theoretical value is your known value.
% error = | ( experimental – theoretical )/ theoretical|
100
% error = | ( 5.75 – 6.25)/ 6.25| 100
% error = 8.0 %
