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An empty graduated cylinder has a mass of 31.46 g. When filled with 20.00 milliliters of an
unknown liquid, it has a mass of 112.15 g. Calculate the density of the unknown liquid.

Respuesta :

Eduard22sly

The density of the unknown liquid is 4.03 g/mL

Density is defined as mass per unit volume i.e

Density = mass / volume

To obtain the density of the unknown liquid, we'll begin by calculating the mass of the unknown liquid. This can be obtained as follow:

Mass of cylinder = 31.46 g

Mass of cylinder + unknown liquid = 112.15 g

Mass of unknown liquid =?

Mass of unknown liquid = (Mass of cylinder + unknown liquid) – (Mass of cylinder)

Mass of unknown liquid = 112.15 – 31.46

Mass of unknown liquid = 80.69 g

Finally, we shall determine the density of the unknown liquid. This is illustrated below:

Mass of unknown liquid = 80.69 g

Volume of unknown liquid = 20 mL

Density of unknown liquid =?

Density = mass / volume

Density = 80.69 / 20

Density of unknown liquid = 4.03 g/mL

Therefore, the density of the unknown liquid is 4.03 g/mL

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