If the density of a certain oil is 0.8gcm3. What is the mass of 10 cm3 sample of this oil? report your answer with one significant figure.

Taking into account the definition of density, the mass of the sample of oil with a volume of 10 cm³ and a density of 0.8  is 8 grams.

Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.

In other words, density is a quantity that allows us to measure the amount of mass in a certain volume of a substance.

Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

From this expression it can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.

In this case, you know that:

Replacing in the definition of density:

Solving:

mass=  0.8 × 10 cm³

mass= 8 g

In summary, the mass of the sample of oil with a volume of 10 cm³ and a density of 0.8  is 8 grams.

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