Kimia kelas 10 SMA Larutan Asam Basa. Anak SMA jawab ini ya! JAWAB YA NO.3 B DAN D! PAKAI CARA YA KALO BISA! Anak SMA dan Jenius Kimia jawab ini ya, kecuali ana

3.
b.
[H+] = √Ka . M
[H+] = √1,8 x 10^-6 x 2 x 10^-1
[H+] = √18 x 10^-7 x 2 x 10^-1
[H+] = √36 x 10^-8
[H+] = 6 x 10^-4

pH = -log[H+]
pH = -log 6 x 10^-4
pH = 4 - log6


d.
Mg(OH)2 ←→ Mg2+ + 2OH-

[OH-] = √Kb . M
[OH-] = √9 x 10^-7 x 4 x 10^-3
[OH-] = √36 x 10^-10
[OH-] = 6 x 10^-5

pOH = -log [OH-]
pOH = -log 6 x 10^-5
pOH = 5 - log6

pH = 14 - (5 - log6)
pH = 14 - 5 + log6
pH = 9 + log6