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A sitler ve Ba zlar. HA dan oluşan [H 3 O + ]. İyonlaşma derecesi =. başlangıçta [HA] . HA dan oluşan [H 3 O + ] . x 1 00. İyonlaşma yüzdesi =. başlangıçta [HA]. İyonlaşma derecsi. HA + H 2 O ↔ H 3 O + + A -. K w = [H3O+][OH-] = 1.0 x 10-14 (at 25°C).

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yonla ma derecsi

HA dan oluşan [H3O+]

İyonlaşma derecesi =

başlangıçta [HA]

HA dan oluşan [H3O+]

x100

İyonlaşma yüzdesi =

başlangıçta [HA]

İyonlaşma derecsi

HA + H2O ↔ H3O+ + A-

slide28

3.0 M H3PO4 çözeltisinde;

(a) [H3O+]; (b) [H2PO4-]; [HPO42-] (d) [PO43-] konsantrasyonları nedir?

H3PO4 + H2O ↔ H2PO4- + H3O+

Initial conc. 3.0 M 0 0

Changes -x M +x M +x M

Eqlbrm conc. (3.0-x) M x M x M

slide32
Soru 0.246 M NH3 ve 0.0954 M NH4Cl içeren tampon çözeltini pHının hesaplayınız. (NH3 için Kb = 1.80 x 10-5)
  • NH3 +H2O  NH4+ + OH-