Answer Happy

Posted: **Sun May 22, 2022 10:23 pm**

: Strong Cn H 2 0 Hcn Oh Weak R Cn H 0 Hcn Oh I 0 12 O 18 K X X C X E 0 12 X X Assume X Is Small 0 12 X 1 (27.52 KiB) Viewed 10 times

Strong! CN + H₂2₂0 HCN + OH- weak R| CN + H₂0 = HCN + OH- I 0.12 Ø 18 K₂= +X +X c-x E 0.12-X X assume x is Small [0.12-x] 0.12 ~ 10-1 X = 0.00156 = [OH-] K₂ ~ 10- K6 = basic salt CHEN] [OH-] [EN] Kw = K₂ Kb Ко K6 = 2.04 x 10-5 approx. is ok Kw. 1.0x10-14 Ka 4.9x10710