Density

density = [blank_start]mass[blank_end]/[blank_start]volume[blank_end]

rho = [blank_start]m[blank_end]/[blank_start]V[blank_end]

Density is the mass per unit volume of a substance.

The SI unit of density is the [blank_start]kilogram[blank_end] per [blank_start]cubic metre[blank_end].

The density (in g/cm^3) for aluminium is:

The density (in g/cm^3) for copper is:

The density (in g/cm^3) for iron is:

The density (in g/cm^3) for gold is:

The density (in g/cm^3) for glass is:

The density (in g/cm^3) for wood(teak) is:

The density (in g/cm^3) for ice is:

The density (in g/cm^3) for polythene is:

The density (in g/cm^3) for paraffin is:

The density (in g/cm^3) for petrol is:

The density (in g/cm^3) for pure water is:

The density (in g/cm^3) for mercury is:

The density (in g/cm^3) for air is:

The density (in g/cm^3) for hydrogen is:

The density (in g/cm^3) for carbon dioxide is:

When measuring a regularly shaped solid, the mass is found on a [blank_start]balance[blank_end] and the volume by measuring its [blank_start]dimensions[blank_end] with a [blank_start]ruler[blank_end].

When measuring an irregularly shaped solid (such as a pebble or glass stopper), the [blank_start]mass[blank_end] of the solid is found on a balance. Its [blank_start]volume[blank_end] can then be measured by the [blank_start]difference[blank_end] between the first and second [blank_start]readings[blank_end] or by the [blank_start]volume[blank_end] of [blank_start]water[blank_end] collected in the [blank_start]measuring cylinder[blank_end].

When measuring liquid, the mass of an [blank_start]empty[blank_end] beaker is found on a [blank_start]balance[blank_end]. A known [blank_start]volume[blank_end] of the liquid is transferred from a [blank_start]burette[blank_end] or a measuring cylinder into the [blank_start]beaker[blank_end]. The [blank_start]mass[blank_end] of the beaker plus the [blank_start]liquid[blank_end] is found and the [blank_start]mass[blank_end] of [blank_start]liquid[blank_end] is obtained by [blank_start]subtraction[blank_end].

When measuring air, a [blank_start]balance[blank_end] is used and the mass of a [blank_start]500cm^3[blank_end] round-bottomed [blank_start]flask[blank_end] full of [blank_start]air[blank_end] is found and again after removing the [blank_start]air[blank_end] with a [blank_start]vacuum pump[blank_end]; the [blank_start]difference[blank_end] gives the mass of [blank_start]air[blank_end] in the flask. The [blank_start]volume[blank_end] of air is found by [blank_start]filling[blank_end] the [blank_start]flask[blank_end] with [blank_start]water[blank_end] and pouring it into a [blank_start]measuring cylinder[blank_end].

An object sinks in a liquid of lower density than its own.