Mole Concept :
Mole :
Mole is amount of substance which containing as many entities ( atoms, molecules , ions ) which is equla to number of atom present in 12g weight of C12 isotope and one mole quantity contain 6.022 × 10 to the power 23 entities and it is known as Avogadro number ( Na or Number ) .
Number of C12 atoms = Total Mass/mass of ne atom C12
Gram-particle means mole
Once upon a time 'Mole' was unknown. Then scientists were looking for a name. The idea was this. 12g carbon was molar mass and also called gram atmoic mass.
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| Mole concept |
Molar mass = Gram atomic mass
Strike out *mass* word from above relation.
To get
Molar = Gram atomic
Mole = Gram atom
Mole related Conversions
1u = 1/NA g
1g = NA × 1u
12g Carbon is 1 mole
1g Carbon is 1/12 mole
12u Carbon is just one atom (1/NA mol)
1u Carbon impossible
Image credit : pixbay.com
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