Question

A piece of iron
iron of volume
40cm3 has a mass of 312g
Find the density of iron​

Answer 1

Given:

Volume of iron piece,V= 40 cm³

Mass of iron piece,M= 312 g

To Find:

Density of iron piece

Solution:

We know that,

• $\pink{\boxed{\bf{Density=\dfrac{Mass}{Volume}}}}$

$\rule{190}{1}$

Let the density of iron piece be D

So,

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

$\longrightarrow\rm{D=\dfrac{312}{40}}$

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

Hence, the density of given iron piece 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.

Answer 2

Answer:

I have attached in the pics

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