Question

What is the mass of the block of iron illustrated below?

Answer 1

VOLUME= 5cm*10cm*2cm =100cm^3
but density of iron=7.874g/cm^3
mass=7.874g*100 =787.4g
mass of that block = 787.4g

Answer 2

Answer : 787.4 g

Explanation : With the given information; the volume of the block will be equal to = 5 cm X 10 cm X 2 cm = 100 $cm^{3}$.

Therefore, the volume will be 100 $cm^{3}$.

but density of iron is found to be $7.874 g/cm^{3}$

So, now calculating for mass; on the basis of the density formula;

which is density = mass/volume; so, mass = density X volume;

Therefore, mass will be 7.874 g X 100 = 787.4 g

mass of the iron block = 787.4 g