Tentukan pH larutan 4 x 10-2 M Ca(OH)2
Tentukan pH larutan 4 x 10-2 M Ca(OH)2!
Jawab:
4 x 10-2 M Ca(OH)2
[OH-] = b . Mb
= 2 . 4 x 10-2
[OH-] = 8 x 10-2 M
pOH = - log [OH-]
= - log (8 x 10-2)
pOH = 2 – log 8
pH = 14 – pOH
= 14 – 2 + log 8
pH = 12 + log 8
Jadi pH larutan 4 x 10-2 M Ca(OH)2 adalah 12 + log 8.
----------------#----------------
Semoga Bermanfaat
Jangan lupa komentar & sarannya
Email: nanangnurulhidayat@gmail.com
Kunjungi terus: masdayat.net OK! 😁
Post a Comment for "Tentukan pH larutan 4 x 10-2 M Ca(OH)2"