Question

A cork has a volume 25cm3.The density of the cork is 0.25g cm-3. Find the mass of the cork.

Answer 1

Given:

A cork has a volume 25cm3.The density of the cork is 0.25g cm-3.

To find:

Mass of the cork

Calculation:

Density is a physical quantity denoting the mass of an object present in per unit of volume; Hence the mass of the object can be calculated by product of volume and density.

$\therefore\:\sf{mass = volume \: \times \: \rho}$

$= > \sf{mass = (25 \: {cm}^{3} ) \: \times \: (0.25 \: g {cm}^{ - 3} )}$

$= > \sf{mass = (25 \times 0.25) \: g}$

$= > \sf{mass = 6.25 \: g}$

So, final answer is:

$\boxed{\rm{mass \: of \: cork = 6.25 \: g}}$

Answer 2

Given:

The Volume of Cork = 25 $cm^{3}$

The density of cork = 0.25 $cm^{3}$

To find:

The mass of the cork =?

Step-by-step explanation:

We know density = $\frac{mass}{volume}$

so, mass = density × Volume

     mass = 0.25 × 25

     mass of cork = 6.25

Hence, mass of the cork is 6.25