ChemistryGeneral Chemistry

Dimensional Analysis Chemistry: Gasoline Mass in kg and lb

Convert a 22.3-gallon tank and density of 0.8206 g/mL into gasoline mass: 69.3 kg and 153 lb.

Question

An automobile owner's manual lists a tank capacity of 22.3 gal22.3\,\mathrm{gal}. Gasoline density is 0.8206 g/mL0.8206\,\mathrm{g/mL}. Calculate the gasoline mass for a completely filled tank, expressing the answer in both kilograms and pounds.

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Evidence boundary

The capacity, density, full-tank condition, and both requested mass units come from OpenStax Chemistry 2e, Chapter 1, Exercise 80. The solution uses the source textbook's U.S. liquid gallon convention and the stated density as given; it does not claim a measured fuel mass or account for temperature-dependent density changes. Final results are rounded to three significant figures.