hidroliza
Submitted by Ancica97 on Tue, 06/23/2015 - 20:22

Forums:
U kom nizu sve soli u vodenom rastvoru podlijezu hidrolizi?
1) NaHCO3, NaCN, NH4Cl, KCl
2) NaH2PO4, KHSO4, KHCO3, Na2HPO4
3) KHCO3, Na3PO4, KCN, AlCl3
4) FeCl3, KNO3, KHSO4, NH4Cl
Zastooo?? Hvalaaa
Pod 3
Pod 3
zasto Na3PO4?
zasto Na3PO4?
H3PO4 + 3NaOH --> Na3PO4 +
H3PO4 + 3NaOH --> Na3PO4 + 3H2O
i obratno
Daa.. ali zar Na3PO4 nije
Daa.. ali zar Na3PO4 nije od jake baze i jake kiseline a to ne hidrolizuje? :D
Na₃PO₄(s) ←→ 3 Na⁺(aq) + PO₄³
Na₃PO₄(s) ←→ 3 Na⁺(aq) + PO₄³⁻(aq)
PO₄³⁻(aqueous) + H₂O(liquid) ←→ HPO₄²⁻(aqueous) + OH⁻(aqueous)
HPO₄²⁻(aq) + H₂O(l) ←→ H₂PO₄⁻(aq) + OH⁻(aq)
H₂PO₄⁻(aq) + H₂O(l) ←→ H₃PO₄(aq) + OH⁻(aq)