A sample of gas has a mass of 2 grams and occupies a volume of 4 liters. What is its density, and how does it compare to a liquid with a density of 1 g/mL?

• A. 0.5 g/L, which is more dense than the liquid.
• B. 0.5 g/L, which is less dense than the liquid.
• C. 2 g/L, which is less dense than the liquid.
• D. 2 g/L, which is more dense than the liquid.

Answer: (B)