Density
Density is defined as mass divided by volume The units are typically g/cm3 or g/mL since 1 mL = 1cm3
D = m/V = mass/volume
What determines the density of a fluid ?
Molecular mass Inter molecular force Presence of dissolved compounds Temperature Pressure
Specific Gravity
The specific gravity is the density of a substance divided by the density of water. since water’s density is essentially 1.00 g/mL at room temperature,the specific gravity of a substance is very nearly equal to its density in grams per milliliter.
Specific Gravity = density(substance) / density (water)