Study Set Content:
mass per unit volume of a substance
Density
density is expressed in
grams per cubic centimeter (g/cc)
as the mass of 1 cc of water at 4 C
density of water is 1g/cc
1 cc could be
1 ml
The ratio expressed decimally, of the weight of a substance to the weight of an equal volume of a substance chosen as a standard, both substances at the same temperature or the temperature of each being known
Specific Gravity
weight of a substance relative to the weight of a standard
Relative value
Relative value is also called?
Relative Density
is used as the standard for the sp qr of liquids and solids
Water
most useful standard for gases
Hydrogen
sp. gr less than 1
lighter than water
sp. gr greater than 1
Heavier than water
sp. gr = 1
densities are equal: equal volumes of the 2 substances have the same mass
sp gr. < 1
will float
sp. gr> 1
will sink
mass of an object per unit volume
Density
Relative density is the ratio of a substance's weight to the weight of same volume of water
Specific Gravity
we can get this by dividing the density of the substance with the density of water
Specific Gravity
To calculate we need to know the weight and the volume of the substance
Density
represented in relative term
Specific gravity
represented in absolute term
Density
