What is the mass of a piece of iron that has a volume of 1.45 × 102 mL and a density of 7.30 g/ml ? Be sure your answer has the correct number of significant figures

1 answer

The mass of the iron can be found using the formula:

mass = volume x density

mass = 1.45 x 10^2 mL x 7.30 g/mL
mass = 105.85 g

Therefore, the mass of the iron piece is 105.85 g. This answer has three significant figures.