Specific Gravity Determination Quiz

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Questions and Answers

What is the formula to calculate the specific gravity of the syrup?

  • Subtract the weight of the empty pycnometer from its weight filled with syrup, and divide the difference by the weight of distilled water contained at 25°C (correct)
  • Subtract the weight of the syrup from the weight of the pycnometer
  • Multiply the weight of the empty pycnometer with the weight of distilled water contained at 25°C
  • Divide the weight of the empty pycnometer by the weight of distilled water contained at 25°C

What do hydrometers determine?

  • Volume of liquids
  • Temperature of liquids
  • Approximate specific gravity or density of liquids by flotation (correct)
  • Density of solids

What do specific gravity hydrometers consist of?

  • Thermometer calibrated for water at 25°C
  • Sealed glass tube weighted with mercury (correct)
  • Sealed plastic tube with a thermometer
  • Open glass tube with a thermometer

How many instruments are usually made in a set of specific gravity hydrometers?

<p>Six (D)</p> Signup and view all the answers

What is the purpose of the experiment?

<p>To master the computation of different temperature scales and specific gravity (D)</p> Signup and view all the answers

At what temperature is the simple syrup cooled to before being filled into the pycnometer?

<p>3-5°C below 25°C (D)</p> Signup and view all the answers

Which method is used to determine the specific gravity of simple syrup?

<p>Pycnometer (C)</p> Signup and view all the answers

What is done after filling the pycnometer with the simple syrup?

<p>It is warmed to 25°C (B)</p> Signup and view all the answers

What is the purpose of filling the pycnometer with distilled water?

<p>To compare it with simple syrup (B)</p> Signup and view all the answers

What should be done to the pycnometer after filling it with distilled water?

<p>It should be warmed to 25°C (C)</p> Signup and view all the answers

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