Larutan NaOH 0,30 M sebanyak 20 ml ditambahkan kedalam 40 ml larutan CH3COOH 0,15 M (Ka = 10-5). Harga pH larutan yaitu... a. 7,0 b. 7,5 c. 8,0 d. 8,5 e. 9,0
Kimia
Elvhy023
Pertanyaan
Larutan NaOH 0,30 M sebanyak 20 ml ditambahkan kedalam 40 ml larutan CH3COOH 0,15 M (Ka = 10-5). Harga pH larutan yaitu...
a. 7,0
b. 7,5
c. 8,0
d. 8,5
e. 9,0
a. 7,0
b. 7,5
c. 8,0
d. 8,5
e. 9,0
2 Jawaban
-
1. Jawaban meenatia
jawabannya pH larutan = e. 9,0 -
2. Jawaban bangzainalarief
Reaksinya Hidrolisis:
[OH-] = √kh.M
= √10-9 . 0.1
= √10-10
= 10-5
pOH. = - log 10-5
= 5
pH. = 14 - 5
= 9