Volume and Density

How can we calculate density?

A solid shotput is a metallic sphere of radius $4.9 \mathrm{cm}$. Find the mass of the shotput, if its density is $7.8 \mathrm{g}/\mathrm{cm}³$.

A measuring cylinder is filled with $50 \mathrm{mL}$ of water. A solid with mass $16 \mathrm{kg}$ is then lowered into the cylinder. The water level rises to $58 \mathrm{mL}$. Determine the density of the solid.

$1 \mathrm{g} {\mathrm{cm}}^{-3}$= _____ $\mathrm{kg} {\mathrm{m}}^{-3}$

What is the density of a substance of mass $100 \mathrm{g}$ and volume $10 {\mathrm{cm}}^3$ ?

The mass of sun is $2.0\times {10}^{30} \mathrm{kg}$ and its radius is $7.0\times {10}^8 \mathrm{m}$. Find its mass density?

A jar is filled with two non-mixing liquids $1$ and $2$ having densities $d_1$ and $d_2$, respectively. A solid ball, made of a material of density $d_3$, is dropped in the jar. It comes to equilibrium in the position shown in the figure. Which of the following is true for $d_1$, $d_2$ and $d_3$?

What are the different units of density?

Kilogram per cubic metre is a unit of density.

Explain how to measure volume of the solid.

The density of the pure water is 1 g/mL. What do you think is the density of 10% m/m NaCl solution is?
 

90 g of water is equal to ___ mL.

 

The formula to determine the mass of a solution is _____.

If a solid metal cylinder is melted, and the whole mass is cast in the shape of a cube; then, its density will _ _ _ _ _.

The density of a piece of sealing wax is 1.8gm/cm³. What will be its density in kg/m³

 This same experiment can be performed to find the density of porous objects.

The density of a substance depends on _ _ _ _ _ .

Pure water is denser than seawater..

In order to find the volume of a regular object, we have to use the method of displacement of liquid.

Explain how to measure the volume of an irregular solid using a measuring cylinder.