Respuesta :

yashjaglan012

Answer:

•Molecular formula = emprical formula × n

•n= Molar Mass÷ Emprical formula mass

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Given Molar Mass= 39g

Emprical formula mass of CH =12+1= 13 g

-> n = 39 / 13

=3

Now Molecular formula= emprical formula × n

=CH × 3

=C3H3

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