please solve this first question of gay-lussac based problem - Chemistry - Mole Concept and Stoichiometry

Question

please solve this first question of gay-lussac based problem

Ganti Amrutha Varshini · Accepted Answer

Dear student,
Gay Lussac's law called the Law of combining volumes and it
states that, The ratio between the volumes of the reactant gases
and the products can be expressed in simple whole numbers
If we write balance chemical equation for reaction of
H2 with Cl2 We find that 1 mol of
H2 reacts with 1 mol of
Cl2â€‹ to give 2 moles of HCl
H 2 (g) + Cl 2 (g)
â€‹ -------> 2HCl (aq)
That is 1 volume of H2 reacts with 1 volume of
Cl2 to give 2 volume of HCl
5 6 L of Cl2 will combine with 5 6 L of H2
and hence 11 2 L of HCl is formed
Hydrogen will be present in excess, so residual hydrogen will be
=6-5 6=0 4 L
Volume of H2 left = 0 4L

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