Question

The literature value of the atomic mass of an isotope of nickel is 57.9 g/mol. If a laboratory experimenter determined the mass to be 59.6 g/mol, what is the percent error?​

Answer 1

17%

Step-by-step explanation:

Given parameters:

Atomic mass of nickel isotope = 57.9g/mol

Experimental value of atomic mass = 59.6g/mol

Unknown:

Percentage error in the measurement.

Solution:

The percentage error shows how much uncertainty was introduced into a measurement. To calculate this, we simply use the expression below:

Percentage error =
`(Approximate atomic mass from expriment  - actual atomic mass)/(actural atomic mass) x 100`

Percentage error =
`(59.6-57.9)/(57.9)` x 100 = 17%