Density and specific Gravity

Density and specific Gravity



Density


The density of a material is defined as the mass of one cubic meter of material
DENSITY = MASS/VOLUME


  
Specific Gravity 


We can therefore say that any liquid that will not dissolve (not miscible) in water, with a specific gravity higher than 1, will sink, whilst those with a specific gravity lower than 1 will float on top. For example:
1m3 of water (1000 liters) weights 1000kg
1m3 of aviation gasoline (1000 liters) weight 720 kgs

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