Respuesta :

it 1:1 I had an online review and thats the answer it told me it was.
-Hope this helped you

Answer : The mole ratio of [tex]PCl_3[/tex] to [tex]PCl_5[/tex] is 1 : 1 ratio.

Explanation :

The balanced reaction will be,

[tex]PCl_3+Cl_2\rightarrow PCl_5[/tex]

From the balanced reaction, we conclude that

1 mole of [tex]PCl_3[/tex] react with the 1 mole of [tex]Cl_2[/tex] to give 1 mole of [tex]PCl_5[/tex]

Hence, the mole ratio of [tex]PCl_3[/tex] to [tex]PCl_5[/tex] is 1 : 1 ratio.