An irregular sample of zinc has a mass of 23.21 g. This sample is carefully placed in a graduated cylinder of water with an initial volume of 18.75 . What is the final volume of the water and zinc? The density of zinc is 7.140 g/cm^ 3

Respuesta :

Answer:

Final of of zinc is "3.25 ml" and water is "22 ml".

Explanation:

The given values are:

Mass of Zn,

= 23.21 g

Initial volume,

= 18.75 ml

Density,

= 7.140 g/cm³

Now,

The final volume of water =  [tex]Initial \ volume+Volume \ of \ Z_n[/tex]

Or,

Volume of zinc will be:

= [tex]\frac{Mass \ of \ Zn}{Density \ of \ Zn}[/tex]

On substituting the values, we get

= [tex]\frac{23.21}{7.140}[/tex]

= [tex]3.25 \ cm^3[/tex]

or,

= [tex]3.25 \ ml[/tex]

hence,

Water's final volume will be:

= [tex]18.75+3.25[/tex]

= [tex]22 \ ml[/tex]

The final volume of the water and zinc is 22 cm³

mass of zinc = 23.21 grams

Initial volume of water = 18.75 cm³

density of zinc = 7.140 g / cm³

The final volume of water and zinc can be calculated as follows:

density = mass / volume

volume of zinc = mass / density

volume = 23.21 / 7.140

volume =  3.25070028011

volume of zinc  = 3.25 cm³

The final volume of water and zinc = 3.25 + 18.75 = 22.0007002801

The final volume of water and zinc  = 22 cm³

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