amount of substance

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amount of substance

[ə′mau̇nt əv ′səb·stəns]
(chemistry)
A measure of the number of elementary entities present in a substance or system; usually measured in moles.
References in periodicals archive ?
The findings could have a significant impact for primary care, allowing general practitioners (GPs) to more accurately estimate the total number of moles on a patient extremely quickly, via an easily accessible body part," said the study's lead author, Simone Ribero, MD, of the Department of Twin Research & Genetic Epidemiology, King's College, London, UK.
It develops from abnormal moles, so the risk of being diagnosed with a melanoma is linked to the number of moles a patient has.
This may be explained by the larger number of moles of gas generated by the chemical reactions, as shown on Fig.
The researchers studied tens of thousands of surveys where women had been asked about the number of moles they had along with other relevant questions.
In the other study, conducted at Indiana University in Indianapolis, 75,000 female nurses counted the number of moles on their left arm.
She asserted that people who are more vulnerable to skin cancer risk - particularly people with a number of moles, who have been seriously sunburnt in the past, or who have a family history of melanoma - should be extra cautious.
It is defined as the number of moles of effective crosslinks per mass or volume of polymer and is the inverse of the average molecular weight or mass between crosslink points, [M.
Less established risk factors include having blue or green eyes, blond or red hair, certain types of moles and a large number of moles.
The data showed an inverse correlation between telomere length and smoking and age, while there was a positive correlation between the number of moles on arms and telomere length.
According to Faraday's Law, the number of moles of material plated at a cathode is proportional to the number of moles of electrons transferred at that electrode (2) or:

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