Answer to Question #101240 in Physical Chemistry for Asma Fatima

Question

Calculate the moles of kcl required to produce 10 moles of cl2 by the reaction with kclo3?

Answer 1

The balanced chemical reaction is $KClO_3 + 5KCl + 3H_2SO_4\to 3Cl_2 + 3K_2SO_4 + 3H_2O$

as we can see from the reaction that the ratio of stochiometric coefficient of KCl and chlorine is 5:1 so

for every 3 moles of chlorine produced 5 moles of KCl is required

so, for 1 moles of Cl₂ produced 5/3 moles of KCl is required

to produce 10 moles of Cl₂ we need (5/3)*10 moles of KCl

For producing 10 moles of chlorine gas we need 50/3 moles of KCl