Question

what is n factor or valence factor in mole concept please help me ​

Answer 1

Acids are the species which furnish H+ ions when dissolved in a solvent. For acids, n-factor is defined as the number of H+ ions replaced by 1 mole of acid in a reaction. Note that the n-factor for acid is not equal to its basicity; i.e. the number of moles of replaceable H+ atoms present in one mole of acid.

Answer 2

the no of electrons present in the outermost shells are valence electrons