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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?

Six Signup and view all the answers

What is the purpose of the experiment?

To master the computation of different temperature scales and specific gravity Signup and view all the answers

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

3-5°C below 25°C Signup and view all the answers

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

Pycnometer Signup and view all the answers

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

It is warmed to 25°C Signup and view all the answers

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

To compare it with simple syrup Signup and view all the answers

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

It should be warmed to 25°C Signup and view all the answers