HOW MANY MOLES ARE PRESENT IN 4g OF OXYGEN
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For this use the following formula:
No of moles= (given wt./atomic wt.) if it is atom
or
No of moles=(given wt / molecular wt.) if it is molecule
No of moles= (given wt./atomic wt.) if it is atom
or
No of moles=(given wt / molecular wt.) if it is molecule
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