Tentukan ph dari larutan nasing brkt 1. Asam klorida 0,1m 2. Asam asetat 0,1m 3.amonia 0,1m 4. Natrium hidrosikda 0,1m 5.kalium hidroksida 0,01m 6. asam fosfat

1. HCl --> H+ + Cl-
H+= valensi asam×M
= 1×0,1 M = 0,1 = 10^-1
ph = -logH+
ph = -log 10^-1
ph = 1

3. NH3 --> N + 3H+
H+ = valensi asam×M
= 3×0,1M = 0,3 = 3×10^-1
ph = -logH+
ph = -log3×10^-1
ph = 1-log3

4. NaOH --> Na+ + OH-
OH- = valensi basa ×M
= 1×0,1M = 0,1 =10^-1
pOH = -logOH-
poH = -log 10^-1 =1
pkw = pH+pOH
ph = 14 - 1 = 13

5. KOH --> K+ + OH-
OH- = valensi basa × M
= 1×0,01 = 0,01 = 10^-2
pOH= -logOH-
pOH = -log10^-2 = 2
Pkw = pH + pOH
pH = 14 - 2 = 12