Massa NaOH yang terdapat dalam 100 ml larutan NaOH 2 M adalah.....

Mr = 40
M = 2 molar
V = 100 mL
wt = ....?

M = wt/Mr x 1000/V
2 = wt/40 x 1000/100
2 = wt x 0,25
wt = 2/0,25
wt = 8 gram