Question

piece? Express
8. 80 cm3 of iron weighs 624 g. Calculate the
density of iron.
iahs 225 g. Its yolume is​

Answer 1

Correct Question

80 cm³ of iron weighs 624 g. Calculate the  density of iron.

Given:

Volume of iron, V= 80 cm³

Mass of iron,M= 624 g

To Find:

Density of iron

Solution:

We know that,

• Expression of Density D is given by

$\pink{\underline{\boxed{\bf{D=\dfrac{M}{V}}}}}$

where,

M is mass

V is volume

$\rule{190}{1}$

Let the density of iron be D

So,

$\longrightarrow\rm{D=\dfrac{M}{V}}$

$\longrightarrow\rm{D=\dfrac{624}{80}}$

$\longrightarrow\rm\green{D=7.8\ g/cm^{3}}$

Hence, the density of iron is 7.8 g/cm³.

$\rule{190}{1}$

Additional Information

Density

Density is defined as the ratio of mass of substance to volume occupied by substance.

Mass

Mass is defined as the amount of matter present in the substance.