While applying POAC in mole concept problem somet

Question

While applying POAC in mole concept problem sometimes i get wrong answers. So i wanted to know how to identify that whether a question can be solved by POAC or not?

Vikas TU · Accepted Answer

POAC is the abbreviation used for Principle of Atom Conservation. It is very useful technique to solve the problems of 'chemical equations' quickly & accurately too,especially in competitions it gives you an edge over others.
Now following two points are worth noting about it:-

Balancing is not required, if we use POAC .
POAC can be used for those atoms which are conserved in a chemical reaction.

I am giving an example for you,so that you can understand clearly about using POAC.
KClO3=KCl + O2
Now,applying the POAC for K atoms.
A/c to POAC,

Moles of K in KClO3(reactant)= Moles of K in KCl(product)

In other form,we can write it as

Wt.of KClO3/mol.wt.of KClO3= wt.of KCl /mol.wt.ofKCl.

Please note that ,the text which I have put b/w the lines-are the steps you can remember easily.
Now,you can find out any of the four quantities, if others are known & you don't have to be bother about balancing the more complex reaction.
I hope now that you have developed the basic idea of 'how to apply POAC ' in chemical reactions.
Now,
You should practice the questions of mole concept for better understanding.

Physical Chemistry> While applying POAC in mole concept probl...

While applying POAC in mole concept problem sometimes i get wrong answers. So i wanted to know how to identify that whether a question can be solved by POAC or not?

Amit Pandey , 9 Years ago

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Physical Chemistry> While applying POAC in mole concept probl...

While applying POAC in mole concept problem sometimes i get wrong answers. So i wanted to know how to identify that whether a question can be solved by POAC or not?

Amit Pandey , 9 Years ago

Vikas TU

LIVE ONLINE CLASSES

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