The exact value for the density of aluminum is 2.699g/cm3 . Working in the science lab at school , Joseph finds the density of a piece of aluminum to be 2.75 g/cm3 . what is Joseph percent error?(Round to the nearest hundredths)
The formula for percent error is: (M-A)/A x 100 M= the amount of the sample measured A= the exact value of the sample And the value of M-A is always positive So, 2.75-2.699= .051g/cm3, and .051/2.699=.01889 .01889 x 100=1.889% or 1.9% error
