Astudent measures the mass and volume of a sample of copper at room temperature and 101.3 kpa. the mass is 48.9 grams and the volume is 5.00 cubic centimeters. the student calculates the density of the sample. what is the percent error of the student's calculated density? 7.4% 8.4% 9.2% 10.2%

Answer is: the percent error is 9.2%.

d(Cu) = 8.96 g/cm³; accepted density of copper.
m(Cu) = 48.9 g.
V(Cu) = 5.00 cm³.
d₁(Cu) = m(Cu) ÷ V(Cu).
d₁(Cu) =48.9 g ÷ 5.00 cm³.
d₁(Cu) = 9.78 g/cm³; calculated density of copper.
the percent error = (d₁(Cu) - d(Cu)) ÷ d(Cu) · 100%.
the percent error = (9.78 g/cm³ - 8.96 g/cm³) ÷ 8.96 g/cm³ · 100%.
the percent error = 9.2 %.

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