A 16.0 g sample of iron has a volume of 2.035 cm³.What is its density expressed to the correct number of significant figures?

Question

Quizplus · Accepted Answer

The density of the iron sample is calculated using the formula density = mass/volume. Substituting the given values, density = 16.0 g / 2.035 cm^3 = 7.86 g/cm^3. The answer is rounded to three significant figures because the volume measurement (2.035) has four significant figures, and the mass (16.0) has three significant figures, so the answer should be reported with the least number of significant figures, which is three.

A 160 G Sample of Iron Has a Volume of 2