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Classify each salt as acidic, basic, or neutral
Classify each salt as acidic, basic, or neutral.
1. NH4Cl
2. KNO3
3. NaNO2
Expert Solution
To solve this kind of exercise, you have to look the acid and base where the salt come from:
If the cation comes from a strong base, and the anion comes from a strong acid, the salt will be neutral.
If the cation comes from a strong base, and the anion comes from a weak acid, the salt will be basic.
If the cation comes from a weak base and the anion comes from a strong acid, the salt will be acidic.
1. NH4+ is the conjugated acid of NH3 a weak base.
Cl- is the conjugated base of a strong acid.
So NH4Cl will be acidic
2. K+ is the conjugated acid of KOH a strong base.
NO3- is the conjugated base of HNO3 strong acid.
So KNO3 is neutral
3. Na+ is the conjugated acid of NaOH a strong base.
NO2- is the conjugated base of HNO2 a weak acid.
So NaNO2 is basic
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