Question

The unit for density found in many density tables is kg/m3. at a certain temperature, the gasoline you pump into your car’s gas tank has a density of 732.22 kg/m3. if your tank has a capacity of 13 gallons, how many grams of gasoline are in your tank when it is full? how many pounds?

G?
Lbs?

Answer 1

To determine the mass of gasoline in the the tank, we need data on the density of gasoline. We multiply this value to the capacity of the gasoline tank. We do as follows:

Mass = 13 gallons (0.0038 m^3 / 1 gallons) ( 732.22 kg/m^3 ) = 36.17 kg or 361771.67 g

36.17 kg ( 2.2 lb / 1 kg ) = 79.58 lb