28 gram KOH Mr 56 dalam 200 gram air berapakah molalitas

massa = 28 gram
Mr = 56
Pelarut = 200 gram
n = 2

Faktor van't hoff
i = 1 + (n-1)α
i = 1 + (2-1)1
i = 1 + 1 = 2

Ditanya : molalitas

m = (massa/mr) x 1000/P x i
m = (28/56) x 1000/200 x 2
m = 0,5 x 5 x 2
m = 5 molal

semoga membantu
ㅡ :)