An empty vial weighs 55.32 g. (a) If the vial weighs 185.56 g when filled with liquid mercury (d = 13.53 g/cm3). What i its volume? (b) How much would the vial weigh if it were filled with water (d= 0.997 g/cm3 at 25°C)?

Respuesta :

Answer:

a) Volume of vial= 9.626cm3

b) Mass of vial with water = 62.92 g

Explanation:

a) Mass of empty vial = 55.32 g

Mass of Vial + Hg = 185.56 g

Therefore,

[tex]mass\ of\ Hg = 185.56-55.32 = 130.24 g[/tex]

Density of Hg = 13.53 g/cm3

[tex]Volume\ of\ vial = Volume\ of\ Hg = \frac{Mass}{Density} \\\\= \frac{130.24g}{13.53g/cm3} = 9.626 cm3[/tex]

b) Volume of water = volume of vial = 9.626 cm3

Density of water = 0.997 g/cm3

[tex]Mass\ of\ water = Density*volume = 0.997g/cm3*9.626cm3=9.60 g\\\\Total\ Mass\ of\ vial = Empty\ vial + mass\ of\ water\\= 53.32+9.60= 62.92g[/tex]

(a) The volume of the vial is 9.63 cm³

(b) The vial would weigh 64.92 g when filled with water

Density, Mass & Volume

(a) From the question, we are to determine the volume of the vial

Since, the vial was filled with mercury

Volume of the vial = Volume of the mercury

Now, we will determine the volume of the mercury

Using the formula,

[tex]Volume = \frac{Mass}{Density}[/tex]

First, we will determine the mass of the mercury

Mass of mercury = Mass of (vial + mercury) - Mass of vial

Mass of mercury = 185.56 g - 55.32 g

Mass of mercury = 130.24 g

Therefore,

Volume of the mercury = [tex]\frac{130.24}{13.53}[/tex]

Volume of the mercury = 9.626 cm³

Volume of the mercury ≅ 9.63 cm³

Hence, the volume of the vial is 9.63 cm³

(b) To calculate how much the vial would weigh when filled with water

First, we will determine the mass of water that will fill the vial

Using the formula,

Mass = Density × Volume

Mass of water = 0.997 × 9.63

Mass of water = 9.597 g

Then,

Mass of vial when filled with water = Mass of the vial + Mass of water

Mass of the vial when filled with water = 55.32 g + 9.597 g

Mass of the vial when filled with water = 64.917 g

Mass of the vial when filled with water ≅ 64.92 g

Hence, the vial would weigh 64.92 g when filled with water

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