Question

A block of iron of density 7.8 g/cm3 has a volume of 80 cm3.Find the mass of iron.

Answer 1

Given:

☛ density of iron, ρ = 7.8 g/cm³

☛ volume of iron, V = 80 cm³

To Find:

☛ Mass of the iron, M

Solution:

We know that,

$</p><p>\qquad \boxed{ Density = \frac{Mass}{Volume} }</p><p>$

Putting values in the formula, we get

$</p><p></p><p>\Rightarrow \quad Mass = Density \times Volume</p><p></p><p>\\ \\</p><p></p><p>\Rightarrow \quad Mass = 7.8 \times 80</p><p></p><p>\\ \\</p><p></p><p>\Rightarrow \quad Mass = 624</p><p></p><p>$

Hence, Mass of Iron is 624 grams