I need help solving this, please be detailed

Question

Density of gasoline is 0.850 g/ml.what is the mass of 2.55gal gasoline ?

Answer 1

Density = mass/volume by definition

Use 1 gal = 3785 mls as a conversion factor and use dimensional analysis....

2.55 gal x 3785 ml/gal x 0.850 g/ml = 8204 g = 8.20x10³ g