0
Up till now this corresponds to a value of 6.02214179(30)*1023 elementary entities. (SI unit mol). (uncertainty +/- 5 ppb)
However this might (almost certainly) change in near future (2012?) when SI is 'updating' international standards, definitions and values of the fundamental constants.
(Yes, even the 'standard kilogram' might bere-defined; what a piety for the Paris Standard)
From:
"The mole is the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12; its symbol is 'mol.' "
(14th CIPM (1971, Resolution 3; CR, 78)
In a note to the CIPM in October 2009, Ian Mills, the President of the CIPM (Consultative Committee - Units (CCU) cataloged the uncertainties of the fundamental constants of physics according to the current definitions and their values under the proposed new definition.
He urged the CIPM to accept the proposed changes in the definition of the ....
kilogram, ampere, kelvin and mole so that they are referenced to the values of the fundamental constants, namely Planck's constant (h), the electron charge (e), Boltzmann's constant (k), ....
.... and ....
Avogadro's constant (NA): [There is a broad consensus in the chemical community of the advantages in fixing NA, (fixing means: uncertainty nill ppb)]
Lit. cit. [ Ian Mills, President of the CCU (2009-10). "Thoughts about the timing of the change from the Current SI to the New SI". CIPM. Retrieved 2010-02-23.]
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Avogadros number was calculated as the number of?
atoms in 12 g of c-12
What is the unit of avogadros number?
The unit is "per mole", or mol^-1.
What is the relationship beween avogadros number and the mole?
Avogadro's number represents the number of units of a substance in one mole of the substance. These units may be electrons, atoms, ions, or molecules, depending on the substance.
What is the relationship between avogadros number and one mole of any substance?
A mole of any substance has the Avogadro's number of such units. As an example, a mole of hydrogen atoms is equivalent to 6.022 x 1023 atoms.
How do you represent a repeating number?
You represent a repeating number by putting a dash on top of the number. For example 56.1066666 you represent it by putting a dash on top of the 6
In Avogadros number is defined as the number of particles in?
A mole.
How many moles of atoms are in 6.0221023 atoms Ne?
1. 6.022 X 1023 is Avogadros number (Avogadros constant) the number of atoms in a mole.
Do avogadros number have anything to do with mass and velocity of atoms?
No.
How do you say 6.02X1023 in plain form?
Its avogadros number
What is Aeogaeros Number?
I asked this question wrong. It should be Avogadros Number. Sorry!
Avogadros number was calculated as the number of?
atoms in 12 g of c-12
How many atoms are there in 55.8 grams of Fe?
Avogadros number (approximately). The atomic weight of iron is 55.845. Avogadros number , the number of atoms in a mole of an element, or the number of molecules in a mole of a compound is 6.023 X 1023
How do you enter avogadros number in calculator?
6.023*10^23
What is the numerical of Avogadros number?
It is 6.02 (times) 10 to the power of 23
What is the unit of avogadros number?
The unit is "per mole", or mol^-1.
Avogadros number is the number what?
It is the number of fundamental particles - atoms or molecules - of a substance in 1 mole of that substance.
What is the value of avogadros number?
It is 6.022 x 1023
