Density Calculation of Liquids

In this tutorial we will calculate the density of water using a balance and a metered water container.

Contents

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Equipment

  • Electronic balance PCB1001.19
  • Plastic cylinder 100ml CT3001.18

Materials

  • Tap water

Safety Note

There are no special safety requirements for this experiment.

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  1. Weight the mass of the plastic cylinder.
  1. Pour 60ml water into the cylinder and weight once again the mass. The difference between the final and the initial mass is the mass of water.
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  1. The density formula is:

By using the values you weighted you can find that:

  • Weighted mass of water= 107–47= 60g
  • Water volume= 60 ml = 60 cm³
  • So, ρ = 60/60 = 1 g/cm³
  1. Repeat the procedure by using different kinds of liquids and compare the different densities.
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Question 1

Which of the following properties is fundamental?

  1. force.
  2. mass.
  3. acceleration of gravity.
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Question 2

Which of the following properties is derivative?

  1. mass.
  2. length.
  3. weight.
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Question 3

Which of the following units is fundamental?

  1. kilogram Kg
  2. gram g
  3. Newton N
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Question 4

The mass is affected by:

  1. The shape of the object
  2. The color of the object
  3. The volume of the object
  4. None of the above
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Question 5

If the density of water is 1g/cm3 and the density of ice is 0,92g/cm3, which has more volume, 1kg of water or 1kg of ice?

  1. Ice.
  2. Water.
  3. They have the same volume.
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Question 6

Two solid objects A and B have densities ρΑ>ρΒ and the same mass. So:

  1. VA > VB
  2. VA < VB
  3. VA = VB
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Question 7

A piece of cork is cut into two equal pieces. The density of each piece is:

  1. the same with the initial piece.
  2. twice the density of the initial piece.
  3. the half of the density of the initial piece.

End of tutorial

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