Determine Ka of the weak acid HX knowing that 0.10M
solution of LiX has pH of 8.90
LiX is salt of strong base and weak acid.
for such salts
pH = 1/2 [pKw + pKa + log C]
8.90 = 1/2 [14 + pKa + log 0.10]
17.80 = 13 + pKa
pKa = 4.80
Ka = 10-pKa = 10-4.8
Ka = 1.60 x 10-5
Determine Ka of the weak acid HX knowing that 0.10M solution of LiX has pH of...
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