nCl2=0.672L/(22.4L/Mol)=0.03Mol
MnO2+4HCl=MnCl2+Cl2+2H20
1 :4 :1
nMnO2=0.03Mol
mMnO2=0.03*(55+32)=2.61g
nHCl=0.12Mol
v=n/c=0.12/12=0.01L=10ml
nCl2=0.672L/(22.4L/Mol)=0.03Mol
MnO2+4HCl=MnCl2+Cl2+2H20
1 :4 :1
nMnO2=0.03Mol
mMnO2=0.03*(55+32)=2.61g
nHCl=0.12Mol
v=n/c=0.12/12=0.01L=10ml