Question

A 30.47 g sample of iron is carefully placed in a graduated cylinder with an initial volume of water of 23.66 mL. What is the final volume (in mL) of the water? The density of iron is 7.87 g/mL.

Answer 1

Let, We know;

Mass of the sample of Iron =30.47g

Also, Density of Iron = 7.87 g/mL

We will first calculate the volume(mL) of a sample of iron by using the given mass and the density as;

We know; Density =Mass/Volume

Thus, Volume = Mass/Density

=30.47/7.87

Volume of iron sample = 3.87 mL

When we placed the iron sample in a graduated cylinder with initially water present; The iron sample will displace the water and increase in the volume of water as;

Final volume of water = Initial volume of water + Volume of iron sample

= 23.66 mL +3.87 mL

Final volume of water = 27.53 mL