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Please help how to solve this question given in the image...

Please help how to solve this question given in the image...

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Grade:11

1 Answers

Arun
25758 Points
3 years ago
  The balanced chemical equation can be written as:-
    C2H4N2 + 3O2 = 2CO2 + 2H2O + N2
     (9-v)        v            4         6        2
 
(i) The GAY LUSSAC'S LAW ,according to which the reactants are in whole number ratio which is equal to the mole ratio.
   (9-v)/v=1/3
  27-3v=v
   27=4v
   v=6.75mL
 
(ii) The molecular mass of compound A i.e. C2H4N2=(2*12)+(4*1)(2*14)=56g/mol.

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