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give three examples of methods of measuring the amount of something and give an example of how one of these quantities can be converted to another type of quantity

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mixter17

To measure the amount of something we can:

  1. Measure its mass
  2. Measure its volume
  3. Measure its number of moles

Why?

Those are the three ways of measuring the amount of substance. Mass is measured in grams (g) and can be measured using a balance, the volume is measured in liters (L) and  can be measured using a graduated cylinder. Moles are often determined indirectly through titration or weighing.

To convert one quantity into another we often use conversion factors. To interconvert between mass and volume we use the density.

Density is defined as the amount of mass in a given volume of the substance. If we had a sample of 1000 mL of ethanol, and we wanted to find its mass, we'd have to apply the following conversion factor, knowing that the density of ethanol is 0.789 g/mL:

[tex]1000mLEtOH*\frac{0.789g}{1mL}=789 g[/tex]

Have a nice day!

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