Name:__Joseph Dye________Date:__02/04/2025______Partner:_Hillary, Camryn
Density of Matter:
Safety: Waste:
Be cautious and always wear your safety All used alcohol solutions must be disposed
goggles!!! Spilled water must be cleaned up of in non-halogenated organic waste. A
promptly to prevent slippage. The solutions waste container will be provided in the fume
used in this experiment are dangerous and hood.
can cause damage to your body and harm
other people working around you. The Materials:
glassware presents a safety hazard if broken.
Always be careful and considerate of other five isopropyl alcohol solutions of various
people working around you. concentrations
10 mL graduated cylinder
Isopropyl alcohol (C3H8O) solutions are paper towels
flammable liquids which may cause six isopropyl alcohol solutions of unknown
irritation to the respiratory tract, digestive concentration
tract, skin, and eyes. They may also cause
central nervous system depression.
Procedure:
Part I: Measuring density of solutions with known concentration
1. Obtain five solutions with the following concentrations of isopropyl alcohol (weight percent)
in water 20%, 35%, 50%, 70%, and 100%.
2. Weigh a 10 mL graduated cylinder on the analytical balance. The cylinder must be clean and
dry. Record the weight of the empty cylinder on table 1 to the nearest 0.0001 g.
3. Start with either the highest concentration or the lowest concentration of alcohol. Pour 5-6
mL of the first isopropyl alcohol solution of known concentration into the pre-weighed
cylinder. Be careful not to spill on the outside of the cylinder. Read the volume of solution
in the cylinder to the nearest 0.01 mL and record your observation on table 1. Make sure that
your eyes are at the same level as the bottom of the meniscus when reading the volume.
4. Weigh the cylinder plus the alcohol solution and record the weight on the data sheet.
5. Discard the alcohol into the waste container. Clean and dry the cylinder.
6. Repeat steps 2-5 with the remaining four known alcohol solutions, continuing in increasing
or decreasing order depending on whether you started with the lowest concentration or the
highest, respectively.
7. Calculate the density of each solution in g/mL and report the value on table 1.
Density of Matter Procedure v.1.1 updated 4/25/24 by Mary Alvarez 1
Density of Matter:
Safety: Waste:
Be cautious and always wear your safety All used alcohol solutions must be disposed
goggles!!! Spilled water must be cleaned up of in non-halogenated organic waste. A
promptly to prevent slippage. The solutions waste container will be provided in the fume
used in this experiment are dangerous and hood.
can cause damage to your body and harm
other people working around you. The Materials:
glassware presents a safety hazard if broken.
Always be careful and considerate of other five isopropyl alcohol solutions of various
people working around you. concentrations
10 mL graduated cylinder
Isopropyl alcohol (C3H8O) solutions are paper towels
flammable liquids which may cause six isopropyl alcohol solutions of unknown
irritation to the respiratory tract, digestive concentration
tract, skin, and eyes. They may also cause
central nervous system depression.
Procedure:
Part I: Measuring density of solutions with known concentration
1. Obtain five solutions with the following concentrations of isopropyl alcohol (weight percent)
in water 20%, 35%, 50%, 70%, and 100%.
2. Weigh a 10 mL graduated cylinder on the analytical balance. The cylinder must be clean and
dry. Record the weight of the empty cylinder on table 1 to the nearest 0.0001 g.
3. Start with either the highest concentration or the lowest concentration of alcohol. Pour 5-6
mL of the first isopropyl alcohol solution of known concentration into the pre-weighed
cylinder. Be careful not to spill on the outside of the cylinder. Read the volume of solution
in the cylinder to the nearest 0.01 mL and record your observation on table 1. Make sure that
your eyes are at the same level as the bottom of the meniscus when reading the volume.
4. Weigh the cylinder plus the alcohol solution and record the weight on the data sheet.
5. Discard the alcohol into the waste container. Clean and dry the cylinder.
6. Repeat steps 2-5 with the remaining four known alcohol solutions, continuing in increasing
or decreasing order depending on whether you started with the lowest concentration or the
highest, respectively.
7. Calculate the density of each solution in g/mL and report the value on table 1.
Density of Matter Procedure v.1.1 updated 4/25/24 by Mary Alvarez 1
