Answer
This salt is basic.
Work Step by Step
1. Analyze each type of ion in this salt, and determine which is stronger:
- $Na^{+}$
- Strong bases have insignificant acids as conjugate pair.
- $Na^+$ is the conjugate acid of $NaOH$, which is a strong base.
- $Na^+$: Insignificant acid.
- $F^-$
- Weak acids have weak bases as conjugate pair.
- $F^-$ is the conjugate base of $HF$, which is a weak acid.
- $F^-$ is a weak base.
Therefore: the stronger ion is $F^-$, and since it is a base, this salt is basic.
