what is molar mass - defination , explanation
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. 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
