amount of substance


Also found in: Encyclopedia, Wikipedia.

amount of substance

n
(Chemistry) a measure of the number of entities (atoms, molecules, ions, electrons, etc) present in a substance, expressed in moles
References in periodicals archive ?
There are multiple benefits of using hyaluronic acid fillers, including controlling the lip volume with the amount of substance injected.
The seven SI base units are length, time, mass, electric current, thermodynamic temperature, amount of substance, and luminous intensity.
As the numbers of alcohol- and prescription drug-related deaths make clear, the amount of substance consumed has a large role to play in its being lethal or not.
At conducting of PEC for determination of amount of substance it is necessary to make a standard curve, which shows the dependence of optical density of the solution on the amount of substance.
Speeding the healing process reduces the intensity and duration of pain, thereby lessening the amount of substance P released within the thalamus of the brain.
The fact the 140-rated hurdler Dark Spirit was 28 lengths away in fourth gave a certain amount of substance to the form.
Subjects and their attendents were interviewed regarding number of days of abstinance during the week and if relapsed, then type and amount of substance abused.
In blood, heroin will generally stay for around 48- 72 hours depending on the amount of substance and how long ago was it taken," said PSM Chandran, reputed sports medicine doctor, who is also in the national antidoping disciplinary panel.
Table 4 shows the street kids' answers as to the frequency and amount of substance use.
The post-match blast delivered by Stoke boss Tony Pulis about some of Chelsea's diving antics had a fair amount of substance too.
The aim is to develop children's understanding that a thinly spread out substance can be condensed into a pile, and whilst appearing smaller, is actually the same amount of substance.
SI and Metric Unit Cube Quantity SI Unit Metric Unitl Length metre (m) metre (m) Mass kilogram (kg) kilogram (kg) Time second (s) second (s) Electric current ampere (A) ampere (A) Temperature kelvin(K) Degree CeliusfC) Luminous intensity candela (cd) candela (cd) Amount of substance mole (mol) .