The specific gravity of vinegar is approximately 1.01 to 1.05. This varies slightly depending on the concentration of acetic acid in the vinegar.

Here's why:

* Specific gravity is the ratio of the density of a substance to the density of a reference substance (usually water at 4°C).

* Vinegar is a dilute solution of acetic acid in water.

* Acetic acid has a slightly higher density than water.

Therefore, vinegar's specific gravity will be slightly higher than 1.00 (which is the specific gravity of pure water).