amount of substance


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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 ?
Future studies should test the efficacy of mindfulness training in reducing problematic substance use, rather than focusing solely on the amount of substance use.
In a historic decision on November 16, last year, more than 60 countries unanimously voted to redefine kilogram (SI unit of weight) along with three other units Kelvin (SI unit of temperature), mole (SI unit of amount of substance), and ampere (SI unit of current).
The highest amount of substance use was noted among the middle-aged population.
Mominabad police arrested six Guttka manufactures including Raheel, Mansoor, Zeshan, Iftakar, Amir and Arif while recovered a large amount of substance used in Guttka manufacturing.
As someone repetitively uses the drug, dopamine is released, but the brain becomes "used to" the dopamine, and so releases less dopamine for the same amount of stimulation (or same amount of substance), and therefore requires ever larger amounts of stimulation to achieve the same pleasure as time progresses.
An Independent Monitoring Board review of the prison, published in May, said there was a drive for improvement but that it had not yet lead to an overall reduction in the amount of substance misuse.
There are multiple benefits of using hyaluronic acid fillers, including controlling the lip volume with the amount of substance injected.
Tricomponent f-CaO CaO x 0.17Fe[O.sub.1.5] x 0.03Mn[O.sub.2] Mass (g) molecular mass 72.26 Amount of substance 0.0083 (mol) Phase composition [Ca.sub.3] [Ca.sub.2] CaO [Fe.sub.1.5] [Fe.sub.2] [Mn.sub.1.5] [O.sub.5] [O.sub.8] Amount of substance 0.0002 0.0006 0.0064 (mol) Tricomponent f-CaO CaO x 0.14Fe[O.sub.1.5] x 0.06Mn[O.sub.2] Mass (g) 0.6 molecular mass 72.47 Amount of substance 0.0083 (mol) Phase composition [Ca.sub.3] [Ca.sub.2] CaO [Fe.sub.1.5] [Fe.sub.2] [Mn.sub.1.5] [O.sub.5] [O.sub.8] Amount of substance 0.0005 0.0003 0.0061 (mol) Tricomponent f-CaO CaO x 0.1Fe[O.sub.1.5] x 0.01Mn[O.sub.2] Mass (g) molecular mass 72.76 Amount of substance 0.0082 (mol) Phase composition [Ca.sub.3] CaO [Fe.sub.1.5] [Mn.sub.1.5] [O.sub.8] Amount of substance 0.0008 0.0057 (mol)
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.