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Mercury metal is poured into a graduated cylinder that holds exactly 20 mL. The mercury used to fill the cylinder has a mass of 306.0 g. From this information, calculate the density of mercury.
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Don't forget the units!


Sagot :

Taking into account the definition of density, the density of mercury is 15.3 g/mL.

Definition of density

Density is defined as the property that matter has to compress into a given space and it allows us to measure the amount of mass in a certain volume of a substance.

The expression for the calculation of density is:

density= mass÷ volume

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

Density of mercury

In this case, you know that:

  • Mass= 306 g
  • Volume= 20 mL

Replacing in the definition of density:

density= 306 g÷ 20 mL

Solving:

density= 15.3 g/mL

In summary, the density of mercury is 15.3 g/mL.

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