2Na+2H2O=2NaOH+H2
m Na=11.5*0.98=11.27г
n Na=11.27/23=0.49 млоль
n H2=0.49/2=0.245моль
VH2=0.245*22.4=5.488 л
2Na+2H2O=2NaOH+H2
m Na=11.5*0.98=11.27г
n Na=11.27/23=0.49 млоль
n H2=0.49/2=0.245моль
VH2=0.245*22.4=5.488 л