Hitunglah jumlah NaoH 0,2m sebanyak 250ml

Mr = 40
m = 0,2 molal
V = 250 mL
wt = .................?

m = wt/Mr x 1000/wp
0,2 = wt/40 x 1000/250
0,2 = wt x 0,1
wt = 0,2/0,1
wt = 2 gram