Answer
6.75mL
Work Step by Step
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.
