A piece of metallic aluminium with a mass of 10.044 g was found to have a volume of ${\text{3.70 c}}{{\text{m}}^{\text{3}}}$. A student carried out the following calculation to determine the density.

$${\text{Density (g}}\,{\text{c}}{{\text{m}}^{ - 3}}{\text{)}} = \frac{{10.044}}{{3.70}}$$

What is the best value the student could report for the density of aluminium?

A.     ${\text{2.715 g}}\,{\text{c}}{{\text{m}}^{ - 3}}$

B.     ${\text{2.7 g}}\,{\text{c}}{{\text{m}}^{ - 3}}$

C.     ${\text{2.71 g}}\,{\text{c}}{{\text{m}}^{ - 3}}$

D.     ${\text{2.7146 g}}\,{\text{c}}{{\text{m}}^{ - 3}}$

C

One respondent stated that the question would have been clearer if “most appropriate” was used instead of “best value”. 58.77% of candidates got the correct answer.