Question

A student measures the mass and volume of a

substance and calculates its density as 1.40 g/mL. The
correct, or accepted, value of the density is 1.30 g/mL.
What is the percentage error of the student's
measurement?

Answer 1

The answer is 7.69 %

Step-by-step explanation:

The percentage error of a certain measurement can be found by using the formula

`P(\%) = (error)/(actual \: \: number) * 100\% \\`

From the question

actual number = 1.30 g/mL

error = 1.40 - 1.30 = 0.1

We have

`p(\%) = (0.1)/(1.3) * 100 \\ = 7.692307...`

We have the final answer as

7.69 %

Hope this helps you