A student calculated the density of a sample of graphite to be 2.3 g/cm3. Show a numerical setup for calculating the student's percent error for the density of graphite.

Percent error = 1.5%

Explanation:

Given dа ta:

Measured value of density of graphite = 2.3 g/cm³

Percent error = ?

Solution:

Formula:

Percent error = [Measured value - Actual value / actual value] * 100

Actual/accepted value of density of graphite = 2.266 g/cm³

Now we will put the values:

Percent error = [2.3 g/cm³ - 2.266 g/cm³ / 2.266 g/cm³] * 100

Percent error = [0.034 g/cm³ / 2.266 g/cm³] * 100

Percent error = 0.015 * 100

Percent error = 1.5%