Answer:
Here's what I get
Step-by-step explanation:
1. NaBr
NaBr is the salt of a strong acid (HBr) and a strong base (NaOH)
The conjugate base of a strong acid (Br⁻) is a weak base.
The conjugate acid of a strong base (H₂O) is a weak acid.
There will be no reaction. The solution is neutral.
2. Na₂CO₃
Na₂CO₃ is the salt of a weak acid (H₂CO₃) and a strong base (NaOH)
The conjugate base of a weak acid (HCO₃⁻) is a stronger base.
HCO₃⁻ + H₂O ⇌ H₂CO₃ + OH⁻
The reaction produces hydroxide ion. The solution will be basic.
3. NH₄NO₃
NH₄NO₃ is the salt of a strong acid (HNO₃) and a weak base (NH₃)
The conjugate acid of a weak base (NH₄⁺) is a stronger acid.
NH₄⁺ + H₂O ⇌ NH₃ + H₃O⁺
The reaction produces hydronium ion. The solution will be acidic.
4. NaF
NaF is the salt of a weak acid (HF) and a strong base (NaOH)
F⁻ + H₂O ⇌ HF + OH⁻
The reaction produces hydroxide ion. The solution will be basic.
5. C₅H₅NHCl
C₅H₅NHCl is the salt of a strong acid (HCl) and a weak base (C₅H₅N)
C₅H₅NH⁺ + H₂O ⇌ C₅H₅NH₂ + H₃O⁺
The reaction produces hydronium ion. The solution will be acidic.