#1

2kcl=2k+cl2

n(k)=m(k)/M(k)=11.7/39=0.3моль

n(cl2)=1/2n(k)=1/2*0.3=0.15моль

V(cl2)=n(cl2)*Vm=0.15*22.4=3.36л

#2

agno3+2h2o=4ag+o2+4hno3

n(ag)=m(ag)/M(ag)=2.16/108=0.02моль

n(o2)=1/4n(ag)=1/4*0.02=0.005моль

V(o2)=n(o2)*Vm=0.005*22.4=0.112л