Question

3. In an exercise to teach students how to use and analytical balance, the instructor
gives a student a quarter which has been pre-weighed as 5.6026 g. The weight that the
student obtains for the same quarter is 5.6013 g. What is the percent error in the
students reading?

Answer 1

Answer:

The percent error is 0.023%.

Explanation:

Pre-weighed of a quarter is 5.6026 g.

The weight that the  student obtains for the same quarter is 5.6013 g.

We need to find the percent error in the students reading. It is given by the formula as follows :

$\%=\dfrac{|\text{original value-calculated value}|}{\text{original value}}\times 100$

Putting all the values, we get :

$\%=\dfrac{5.6026 -5.6013 }{5.6026 }\times 100\\\\\%=0.023\%$

So, the percent error is 0.023%.