Question

Question #27cd0

Answer 1

You need access to appropriate information that would help you identity the substance.

Explanation:

Hopefully you have a pure substance, such as an element or compound, or a standardized substance. If so, you would have to do research and consult tables and charts. If the density was determined in an experiment, the instructor should provide a list from which to choose. Remember that temperature affects density.

Example
A sample of an element was obtained by a student. After making the appropriate measurements and calculations, the density at `20^@"C"` was determined to be `"2.70 g/cm"^3"`.

The student was given a list of the elements at `20^@"C"` which can be viewed at http://www.chemicool.com/densities.html.

The list included a density of `"2.702 g/cm"^3"` for the element aluminum. Therefore, the unknown element was determined to be aluminum.