Question

A square boat made from iron has overall dimensions of 2.00 cm x 11.0 cm x 11.0 cm. It has a mass of 213 g. What is its density?

Answer 1

Answer: The density of boat is $0.88g/cm^3$

Explanation:

To calculate the volume of boat, we use the equation:

$V=lbh$

where,

V = volume of boat

l = length of boat = 2.00 cm

b = breadth of boat = 11.0 cm

h = height of boat = 11.0 cm

Putting values in above equation, we get:

$V=2.00\times 11.0\times 11.0=242cm^3$

• To calculate density of a substance, we use the equation:

$\text{Density of a substance}=\frac{\text{Mass of a substance}}{\text{Volume of a substance}}$

We are given:

Mass of boat = 213 g

Volume of boat = $242cm^3$

Putting values in above equation, we get:

$\text{Density of boat}=\frac{213g}{242cm^3}\\\\\text{Density of boat}=0.88g/cm^3$

Hence, the density of boat is $0.88g/cm^3$

Answer 2

mass / volume

213/2x121=213/242g/cm^3