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89. The element bromine at room temperature is a liquid with a
density of 3.12 g/mL. Calculate the mass of 125 mL of bro-
mine. What volume does 85.0 g of bromine occupy?

Respuesta :

Eduard22sly

The mass of 125 mL of bromine and the volume occupied by 85 g of bromine are:  

1. The mass of bromine is 390 g.

2. The volume of bromine is 27.24 mL.

Density is simply defined as the mass of an object per unit volume of the object. It can be expressed mathematically as

[tex]Density = \frac{mass}{volume }[/tex]

1. Determination of the mass of bromine

Density = 3.12 g/mL

Volume = 125 mL

Mass =?

[tex]Density = \frac{mass}{volume} \\\\3.12 = \frac{mass}{125}[/tex]

Cross multiply

Mass = 3.12 × 125

Mass = 390 g

Therefore, the mass of bromine is 390 g

2. Determination of the volume of bromine

Density = 3.12 g/mL

Mass = 85 g

Volume =?

[tex]Density = \frac{mass}{volume } \\\\3.12 = \frac{85}{volume }[/tex]

Cross multiply

3.12 × Volume = 85

Divide both side by 3.12

[tex]Volume = \frac{85}{3.12}\\\\[/tex]

Volume = 27.24 mL

Therefore, the Volume of bromine is 27.24 mL

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