Calculate the Density of Gasoline in a Flask

Calculation of Gasoline Density:

Density is defined as the amount of substance per a defined volume of the substance. In this case, we have a 25.00 ml sample of gasoline added to a flask. The initial mass of the flask with stopper is 55.263 g, and after adding gasoline, the final mass is 73.385 g.

To determine the mass of the gasoline, we subtract the initial mass of the flask from the final mass: 73.385 g - 55.263 g = 18.122 g. This is the mass of the gasoline in the flask.

The volume of the gasoline is given as 25.00 ml. Now, we can calculate the density of the gasoline by dividing the mass (18.122 g) by the volume (25.00 ml):

Density of Gasoline = Mass / Volume

Density of Gasoline = 18.122 g / 25.00 ml

Density of Gasoline ≈ 0.725 g/mL

Therefore, based on the data provided, the density of the gasoline in the 25.00 ml flask is approximately 0.725 g/mL.