28.5 g of iron is added to a graduated cylinder containing 45.5 mL of water. The water level rises to 49.1 mL. The density of the iron is

7.92 g/mL.

Explanation:

The following data were obtained from the question:

Mass of Iron = 28.5 g

Volume of water = 45.5 mL

Volume of water + Iron = 49.1 mL.

Density of Iron =.?

Next, we shall determine the volume of the iron. This can be obtained as illustrated below:

Volume of water = 45.5 mL

Volume of water + Iron = 49.1 mL.

Volume of iron =.?

Volume of iron = (Volume of water + Iron) – (volume of water)

Volume of iron = 49.1 – 45.5

Volume of iron = 3.6 mL

Finally, we shall determine the density of iron as follow:

Mass of Iron = 28.5 g

Volume of iron = 3.6 mL

Density of Iron =.?

Density = mass/volume

Density = 28.5/3.6

Density = 7.92 g/mL

Therefore, the density of the iron is 7.92 g/mL