Density and Volume Measurements in Minerals

The video tutorial demonstrates how to measure the density of mineral hand samples. The process involves two steps: measuring the mass and the volume of the sample. The volume is determined indirectly by measuring the mass of water displaced, as the density of water is known. The tutorial covers the density measurement of various minerals, including sulfur, corundum, quartz, garnet, and galena, highlighting the specific steps and calculations involved in each case.

What is the basic formula for calculating density?

• Volume divided by mass

• Mass divided by volume

• Mass times volume

• Volume minus mass

How is the volume of a mineral sample determined in this experiment?

• By measuring the mass of water displaced

• By using a ruler

• By using a graduated cylinder

• By measuring its dimensions directly

What is the mass of the sulfur sample used in the demonstration?

• 14.07 grams

• 7.41 grams

• 28.05 grams

• 18.17 grams

What correction is applied to the volume measurement of sulfur?

• Subtracting 0.5 for the wire

• Adding 0.2 for the wire

• Subtracting 0.2 for the wire

• Adding 0.5 for the wire

What is the mass of the corundum sample?

• 18.17 grams

• 28.05 grams

• 36.47 grams

• 33.25 grams

What is the approximate volume of the corundum sample after correction?

• 8.85 cubic centimeters

• 6.75 cubic centimeters

• 4.7 cubic centimeters

• 7.2 cubic centimeters

What issue is encountered during the quartz density measurement?

• The mineral is too heavy

• The mineral is too light

• Loss of mass due to wet minerals

• The mineral is too large

What is the corrected volume of the quartz sample?

• 7.21 cubic centimeters

• 6.75 cubic centimeters

• 4.7 cubic centimeters

• 8.85 cubic centimeters

What is the mass of the garnet sample?

• 33.25 grams

• 36.47 grams

• 28.05 grams

• 18.17 grams

What is the final corrected volume of the galena sample?

• 7.21 cubic centimeters

• 8.85 cubic centimeters

• 4.7 cubic centimeters

• 6.75 cubic centimeters