efvvrgbstudent5623 efvvrgbstudent5623
  • 13-05-2021
  • Chemistry
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Calcula cuantos mililitros de oxigeno se necesitan para quemar 3.5 ml de C₆H₆ a CNTP, la reacción sin balancear es la siguiente: C₆H₆ + O₂ → CO₂ + H₂O

Respuesta :

sebassandin
sebassandin sebassandin
  • 15-05-2021

Answer:

[tex]26.25mL \ O_2[/tex]

Explanation:

¡Hola!

En este caso, dado que se nos da reacción de combustión del benceno, primero debemos balancearla como se muestra a continuación:

C₆H₆ + ¹⁵/₂ O₂ → 6CO₂ + 3H₂O

Vemos que hay una relación molar entre el benceno y oxígeno de 1:¹⁵/₂, por lo que la relación de volúmenes es:

[tex]3.5 mL\ C_6H_6*\frac{15/2\ mL\ O_2}{1mL\ C_6H_6} \\\\=26.25mL \ O_2[/tex]

¡Saludos!

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