Answers

2015-05-05T10:24:15+05:30
it is the simplest formula for a compound 

ex;for glucose(c6h12o6) emperical formula is ch2o
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2015-05-05T10:35:38+05:30
Empirical formula is define as simple formula for a compound. it's give ratio of elements presant in a compound not actual number of atoms. 
molecular formula of glucose is C₆H₁₂O₆. if you simple it then it contains 2 moles of hydrogen and 1 mole of carbon and oxygen. and so empirical formula is CHO
some time empirical formula and molecular formula are same. 
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