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 • 768 views

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

"a density of "

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

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

"density of "

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.

Examples:

The density of water is 1 gram per cubic centimeter.
The report analyzed the density of traffic in the city.
The study focused on the density of stars in the galaxy.
The density of the material affects its properties.
Understanding the density of a gas is important in chemistry.

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.
The density of the brain is incredible.
density of calibration weight used to span balance
Exponent selects density of the brush mask used to paint the oily render.
Well, the density of the surroundings has no appreciable effect on reception.
Everywhere has the same density of people on this map.
This image represents the density of electrons within the crystal ten minutes ago.
The density of black starts to blur umber.
You can see the density of the surface water in this animation by Ryan Abernathey.
The density of stars is very high.
Galicia has the highest density of forested land in the European Union.
The density of a liquid can be measured by an oscillating densitimeter.
For this calculation the density of CO2 shall be QCO2 = 1,964 g/litre.
We need the density of the wormhole wall to help pull us apart.
It has been assumed that the density of the gas oil is 0,845 kg/l.
I'll monitor the density of the rock and adjust the particle beam.
I come from a region in the United Kingdom with the highest density of pigs.
Specify the units for density of solvent
Given the density of the road network in many parts of Europe this source of salinisation is significant and needs to be considered.

Alternatives:

concentration of
compactness of
intensity of
thickness of
solidity of

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a density of vs density of

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