Which of these is a neutral salt? Na2SO4 NaCN KF (NH4)2SO4
The answer is indeed Na2SO4 but let me explain why: this salt is a salt of a strong acid(H2SO4) and strong base(NaOH). NaCN is a basic salt. KF is a basic solution because KOH is strong base and HF is not a strong acid. And NH42SO4 is acid. Have in mind the following to determine if something is neutral, basic or acid:
Strong acid + Strong base = neutral salt
Strong acid + Weak base = acidic salt
Weak acid + Strong base = basic salt
Weak acid + Weak base = neutral salt
The example of a neutral salt in the question is Na2SO4.
Therefore, the example of a neutral salt in the question is Na2SO4.
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