Question

A student identified the volume of a solution to be 13 milliliters. The true volume was 12.5 milliliters. What is the percent error of the measurement?

Answer 1

Answer:

4 %

Explanation:

The per cent error is given by

error = ( observed value - true value ) / true value x 100%

Now in our case

observed value = 13 mm

true value = 12.5 mm

therefore,

$\text{error}=\frac{13-12.5}{12.5}\times100\%$$error=\frac{0.5}{12.5}\times100\%$

which simplfies to give

$error=0.04\times100\%$$undefined$