Question

The specific gravity of iron is 7.87, and the density of water at 4.00 ∘c ∘ c is 1.00 g/cm3 g / c m 3 . you can use this information to find the density of iron. find the volume occupied by 9.50 g g of iron.

a. 0.127 g/cm³
b. 1.00 g/cm³
c. 7.87 g/cm³
d. 15.74 g/cm³

Answer 1

To find the volume of 9.50 g of iron with a density of 7.87 g/cm³, the formula Volume = Mass/Density is used, resulting in a volume of 1.21 cm³.

Step-by-step explanation:

The question asks how to find the volume of 9.50 g of iron given its specific gravity. Specific gravity is the ratio of the density of a substance to the density of a reference substance; typically, the reference is water at 4 °C, where it has its maximal density of 1 g/cm³. To find the volume of the iron, you can use the formula Density = Mass/Volume. Since the density of iron is given as 7.87 g/cm³, you can rearrange the formula to solve for volume: Volume = Mass/Density. Substituting the mass of the iron (9.50 g) and its density (7.87 g/cm³) into the equation gives a volume of 1.21 cm³, when calculated to two significant figures.