Understanding Specific Gravity

* Specific gravity is the ratio of the density of a substance to the density of a reference substance, usually water.

* Since the density of water is 1 g/cm³, a specific gravity of 13.6 for mercury means that mercury is 13.6 times denser than water.

Calculations

1. Density of Mercury:

* The density of mercury is 13.6 g/cm³ (because specific gravity = density of substance / density of water).

2. Volume of Mercury:

* We know the mass (0.35 g) and the density (13.6 g/cm³) of mercury. We can use the formula:

* Density = Mass / Volume

* Rearranging the formula: Volume = Mass / Density

* Volume = 0.35 g / 13.6 g/cm³ = 0.0257 cm³

3. Converting to mm:

* 1 cm³ = 1000 mm³

* Therefore, 0.0257 cm³ = 0.0257 cm³ * 1000 mm³/cm³ = 25.7 mm³

Answer: Approximately 25.7 mm³ of mercury have a mass of 0.35 g.