gelas kimia 1 berisi 100 ml larutan NH4OH 0,1M (Kb=10

OH- = akar Ka Ma
= akar Ka 10^-1
= akar 10^-5 . 10^-1
= akar 10^-6
= 10^-3 M

pOH = 3

Ka = masih typo nulisnya, coba dimasukin aja sendiri angka Ka nya

misal Ka = 10^-5