是1:100
n(Na)=2.3/23=0.1mol
2Na+2H2O=2NaOH+H2
.2........2.........2...........
0.1......0.1......0.1...............................
m(H2O)=0.1*18=1.8g
n(Na+)=n(Na)=0.1mol
n(总H2O)=0.1*100=10mol
m(总或H2O)=10*18+1.8=181.8g