3.Cm=n/Vs-CORESPONDENT-a-
n=m/M
n=3,65/36,5
n=0,1 moli
Cm=0,1/1=0,1M
4.H2O-CARACTER
AMFOTER=pH=7=pOH-raspuns e
5. n=m/M
n=20/40=0,5 moli
Cm=0,5/1=0,5M-raspuns b
1.[HO-]=10-8
POH=8-RASPUNS,
pH+pOH=14
pH+8=14
pH=6-raspuns c
2.din concentratia
ionilor de hidroniu
pH=12
pOH=14-12
pOH=2-raspuns d