A250 ml flask and stopper have a mass of 110.525 g. a 50 ml sample of gasoline is pipetted into the flask, giving a total mass of 146.770 g. find the density of the gasoline

The density of gasoline will be 1.4 g/ml.

Explanation:

Density is defined as the mass contained per unit volume.

Given : Mass of gasoline = (mass of gasoline +mass of flask +mass of stopper) -  (mass of stopper +mass of flask) = (146.770 - 110.525) grams = 36.245 grams

Volume of gasoline = 50 ml

Putting in the values we get:

Thus density of gasoline will be 1.4 g/ml

the law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products. because atoms are only rearranged in a chemical reaction, there must be the same number of sodium atoms and chlorine atoms in both the reactants and products