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In mole concept how to solve problems

Answer»

STEP 1: Identify MOLES of that particular entity (ATOM, MOLECULE or ion).


STEP 2: Use UNITARY method to calculate what is asked in the question.


Example: When we say oxygen gas weighs 32 gram then we mean to say that 1 mole of oxygen molecule (O2) weighs 32 grams and not 1 mole of oxygen atom which is O.


Hope it helps you :)



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