a density of vs density of

Both "a density of" and "density of" are correct, but they are used in different contexts. "A density of" is used when referring to a specific amount or quantity of something, while "density of" is used when discussing the concentration or compactness of a substance or material.

Last updated: March 30, 2024 • 669 views

a density of

This phrase is correct and commonly used in English when referring to a specific amount or quantity of something.

Use "a density of" when you want to specify a particular amount or quantity of a substance or material. It is often used in scientific or technical contexts.

Examples:

A density of 2.5 grams per cubic centimeter.
The study measured a density of particles in the air.
The report highlighted a density of population in urban areas.
The experiment showed a density of energy in the system.
The formula requires a density of the liquid.

Show examples from the web [+]

The fragment has a density of 100 billion kg per cubic cm.
For stainless steel calibration weights, a density of 8000 kg/m3 shall be used.
Port Wine whose degree of sweetness must correspond to a density of 1034 to 1084 at 20 ºC.
Nine track with a density of 1600 or 6250-BPI and EBCDIC of ASCII coding, preferably labelled.
Finnish producers routinely stock to a density of 42-44 kg per square metre, less than the size of one A4 sheet per meat chicken.
Computer tapes: Nine track with a density of 1600 or 6250 BPI and EBCDIC or ASCII coding, preferably unlabelled. If labelled, an end-of-file code should be included.
The product is a reddish brown, cloudy, slightly viscose liquid with a density of 1,1812 g/cm3 and a Brix value of 40.
In the case of Niscemi, however, the installation would be built 2 km from a built-up area (with a density of 280 inhabitants/km 2).
White expandable polystyrene beads with a thermal conductivity of not more than 0,034 W/mK at a density of 14,0 kg/m3 (± 1,5 kg/m3), containing 50 % recycled material
it consists of a 30 cm diameter tissue equivalent sphere with a density of 1 g cm-3 and a mass composition of 76,2 % oxygen, 11,1 % carbon, 10,1 % hydrogen and 2,6 % nitrogen.
Even though experts believe that animal welfare is at greater risk above a density of 30 kg per square metre, that is definitely not an absolute limit above which disaster is sure to strike.
It has a rectangular profile shape and a density of 1,20 g/cm3.
Never in a million years would I have thought that something with a density of 19.5 grams per cubic centimeter would compress.
The olives are debittered by macerating them in an alkaline solution of potash or soda, of a density of not more than 1032.
The oil produced may not exceed 650 kg/ha for olive groves with a density of not less than 200 trees.
The concentration increases until the initial amount of must attains a density of no less than 1,240 at a temperature of 20 ºC.
Acid with a density of 1.831 to 1.835 at 20 ºC containing at least 95 % sulphuric acid (H2SO4).
Where cultivation is in the open, planting takes place in April and May, with a density of 3-5 plants per square metre, and picking begins in June-July.
(b) a density of 2 72 or more;
b. Non-"composite" ceramic materials in crude or semi-fabricated form, composed of borides of titanium with a density of 98 % or more of the theoretical density;

Alternatives:

a concentration of
an amount of
a quantity of
a mass of
a volume of

density of

This phrase is correct and commonly used in English when discussing the concentration or compactness of a substance or material.

Use "density of" when you want to talk about the concentration or compactness of a substance or material without specifying a particular amount. It is often used in scientific or technical discussions.