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50 mL 1 M NaH2PO4 ile 50 mL 1 M Na2HP04 kartrlarak bir zelti hazrlanr. Verilen bilgilere gre aadaki trlerden hangisi zeltide en dk konsantrasyonda

50 mL 1 M NaH2PO4 ile 50 mL 1 M Na2HP04 kartrlarak bir zelti hazrlanr. Verilen bilgilere gre aadaki trlerden hangisi zeltide en dk konsantrasyonda bulunur?

Ekstra ierik

H3PO4 <--> H+ + H2PO4- Ka1 = 7.2 E-3

H2PO4- <--> H+ + HPO42- Ka2 = 6.3 E-8

HPO42- <--> H+ + PO43- Ka3 = 4,5 E-13

cevap seenekleri:

A.PO43-

B. H2PO4-

C. HPO42-

Na+

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