Mole.

 Hey guys , hi.

Welcome to another article presented by eStudyan. In this article we will discuss everything related to mole concept. This is a very demanded important topic for those who takes science in intermediate.

Mole , molecule , molar mass etc. , These types of words haunts many students . And ,infact they do not understand this well after the end of their study also. If you also fear from mole then just read this full article. This will clear all your doubts  today. So let's start.


Mole is just  a number.  It just tells us how much amount of particles present in a single atom. Suppose you went in market and you want to buy banana. The thing you will do there is you ask the banana seller to provide you banana. Then, he will asks you how much dozen banana you want.

                      The dozen above means 12. Just like dozen in the above case , mole means 6.022×1023.  So now it should be clear that mole is just a number. 

After the discovery of atom by John Dalton, scientists got curious to know about the mass of atom.  Scientists decided to use a.m.u. as the unit of mass of single atom. It should be clear that 1 a.m.u equals to one-twelth of mass of carbon-12 atom in grams. Below we have provided the mass of some basic elements in a.m.u.


 
Elements Atomic mass
Hydrogen 2 u
Helium 4 u
Lithium 7 u
Beryllium 8 u
 Now after a bit of time a relation had been derived between no. of moles of atom and it's mass. 
       Number of moles = Mass in grams/ Molar mass.
Now the question is what is molar mass. So let's see that.
Molar mass is the mass of 1 mol of a compound or molecule
(Molecule:- It is the group of atoms). 

 I hope your all doubts related to mole and molar mass gets cleared. 
For any query just comment below.

Author:- Nayan Jyoti

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No part of this article should be published online or offline in any manner.


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