Question #0a813

1 Answer
Jun 10, 2017

Balanced equation of the redox reaction

#MnO_2+4HCl->MnCl_2+Cl_2+2H_2O#

This equation reveals that 4mol #HCl# produces 1mol #Cl_2#

We have been given 400 mL or 0.4L of 0.1 M HCl which contains #0.4xx0.1mol=0.04mol# #HCl#

Hence the amount of #Cl_2# produced #1/4xx0.04=0.1mol=0.71g" "#as the molar mass of #Cl_2=71g"/"mol#

The density of #Cl_2=2.84g"/"L#

So its volume will be #0.71/2.84L=0.25L#