tips for getting out of out in mole concept problems along with hard work and practice

Following are the important formulae to solve numerical based on mole concept:

 

Try to remember the formulae and there use.Practice as many as problems you can for better understanding.

 

 

Important formulae of mole concept:

 

Mole and Gram Atomic Mass: One mole of atoms                = 6.022 ×1023 atoms                                                                                                = Gram atomic mass of an element                                                                                                = 1 gram atom of the element
Mole and Gram Molecular Mass: One mole of molecules = 6.022 ×1023 molecules                                                                                            = Gram molecular mass                                                                                            = 1 gram molecule of the compound
Mole in terms of volume:               One mole of a gas          = 22.4 litres at S.T.P.
Moles of an element = Mass of the element                                  Atomic mass or GA.W	Moles of a compound = Mass of the compound                                     Molecular mass or GMW
Mass of one atom = Atomic Mass or GAW                                 6.022 × 1023	Mass of one molecule = Molecular Mass or GAW                                              6.022 × 1023
Number of molecules = Moles × 6.022 ×1023	Number of atoms = Moles × 6.022 ×1023