Mole :

Mole is defined as the quantity of a substance that contains 6.022 X 10²³ particles ( atoms, molecules ,formula units or ions).

Mole is represented by ” mol”.

It’s unit is mol^-1

Chemical equation Representation:

A chemical equation is a way to represent chemical reaction by using symbols, chemical formulae and notations.

A balance equation represents molecular, molar, mass and volume ratio. However volume ratio is for gases only.

N_2(g)     +          3H_2(g) form 2NH_3(g)

Molecular ratio                        1 molecule       3 molecules                             2 molecules

Molar ratio                              1 mole             3 moles                                    2 moles

Mass ratio                                (14×2)=28g     3(1×2)=6g                                2(14+1×3)=34g

Volume ratio (for gases only) 1 volume         3 volumes                               2 volumes

Also Read !!!

Mole and Avogadro’s Number | Important Questions

Stoichiometry Important Terms Definitions

What is the difference between Octet Rule and Duplet Rule

Basic Atomic Structure

What is the difference between Shell , Subshell and Orbital

How ions are formed (Cation vs Anion)

Ionic Bond : Definition, Examples & Formation

Covalent Bond :Definition and Examples