1)150cm3 of diluted solution of 0.2M sodium hydroxide was prepared from a solution that was 2M sodium hydroxide. Calculate the volume that was used.
Step I
M3V3= M3V3
M3=2M
V3=?
M3=0.2M
V3=150cm3
Step III
substitute the values above.
   
2 x V = 0.2 x
   
   
V= 0.2 x
V=