Question

Hitunglah berapa gram NaOH yang dibutuhkan untuk membuat larutan NaOH 1N sebanyak 100mL(mr NaOH = 40 ; n = 1 ; V = 100

Answer 1

Mr NaOH = 40, BE NaOH = Mr NaOH
N NaOH = 1
V = 100 ml
Massa NaOH?

N = massa NaOH/BE . 1000/V(ml)
massa NaOH = N . BE. V(ml) /1000
massa NaOH = 1 . 40 . 100 / 1000
massa NaOH = 4 gram