Avogadros constant

N is the Avogadro constant, and b is the effective bond length of bonds of the chain, such that = vb2, where is the mean-square end-to-end distance of the chain. 

The Avogadro constant is the number of particles contained in one mole of a substance. Its value is 6.02 x 1023 mob1 and its symbol is L. In one mole of the carbon-12 isotope, there are 6.02 x 1023 12C atoms. 

One mole of any element contains 6.022x 1023 atoms, the Avogadro constant. 

In these problems we use the Avogadro constant and the fact that one mole of atoms of an element has a weight in grams equal to its atomic mass. 

Now we can determine the mass per A1 atom, and a value for the Avogadro constant. 

This value is for one pair of vacancies. To obtain the molar quantity, we multiply AZZp above by NA, the Avogadro constant, to yield... 

The number of elementary entities in 1 mol is an experimentally determined quantity, and is called the Avogadro constant L, which has the value 6.022 x 1023 mol-1. The Avogadro constant is also (incorrectly) called the Avogadro number . It is... 

---