Question

explain mole concept and how to find mole ?......

Answer 1

1 Mole of any species ( atoms, molecules , ions or particles ) is that quantity in number having a mass equal to its atomic mass or molecular mass in grams.
The number of particles present in any substance is eqyual to the avagadro number ( 6.022*10 raise to 23)

formulea :-
No, of moles = Given mass/ Molar mass... As i said b4 molar mass is equal to their Atomic mass

Answer 2

a mole is a substance is defbined as the amount of a substance containing elementary particle like atom molecule or ion in 12 gram of carbon C - 12 atom

calculate

The formula of calculating mole relative formula for compound is calculated by adding together the relative atomic mass values for all atom in its formula unit used to measure substance amount

Hope it's helpful please mark brain list thanks

Like one example

Question. 1

Calculate the number of mole 81 gram of aluminium

Solution=
Number of mole of Aluminium = mass of aluminium÷ atomic mass of aluminium

81÷21=3 mole answer