Aqueous solutions of one of the following salts is basic. Which one? Please explain how you...
Aqueous solutions of one of the following salts is basic. Which one? Please explain how you determine it?
a. NH4F
b. NH4OCN
c. NH4OBr
d. NH4CH3COO
e. NH4NO2
Homework Answers
The correct options
d. NH4CH3COO
As we all know NH4+ is a weakly acidic having Ka 5.68 * 10 ^-10
so any acid having Kb > Ka of NH4+ will make the salt basic
and CH3COOH is a weak acid so its conjugate base is more basic having Kb = 1.7 * 10 ^-6
So d. NH4CH3COO is the correct answer
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Predict whether aqueous solutions of the following compounds will be acidic, basic or neutral. If the solution would be acidic or basic, circle the ion that causes the pH to change. a) NH Brb ) FeCl, c) K,CO, d) KCIO e) NaBr f) MgCl, g) NaF h) LiNO Two unknown acid solutions are both labelled 0.50 M. How could you determine which is the strong acid and which is the weak acid? Explain.
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