* Nitrate ion (NO₃⁻) is the conjugate base of a strong acid (HNO₃, nitric acid). Strong acids completely ionize in solution, so their conjugate bases are very weak and have minimal impact on pH.

* Lithium ion (Li⁺) is the conjugate acid of a strong base (LiOH, lithium hydroxide). Strong bases completely dissociate in solution, making their conjugate acids very weak and having negligible effect on pH.

Since the nitrate ion has a slightly greater tendency to hydrolyze (react with water) than the lithium ion, it will produce a small amount of hydronium ions (H₃O⁺), leading to a slightly acidic solution.

Therefore, while lithium nitrate is not a strong acid, it is considered slightly acidic.