Name
Section
Lab Instructor
Date
Experiment 3:
DENSITY DETERMINATIONS
RESULTS/OBSERVATIONS
A. DENSITY OF SOLIDS
I. Regularly Shaped Solid: The regularly shaped solid will be a cylindrical solid of one of
the following metals: Zinc, Tin, Lead or Copper. From the Handbook of Chemistry and
Physics, obtain and record below the accepted (theoretical) values for the density of
these metals.
Metal:
Zinc
Tin
Lead
Density:
ID letter of regularly shaped solid
Shape
Dimensions of regularly shaped solid
Length =
Radius =
Calculated Volume of regular solid
Mass of regularly shaped solid
Calculated density of regularly shaped solid
Based on the calculated density,
what is the identity of the metal
% Error (Handbook value vs experimental value)
1
Copper
Aluminum
II. Irregularly Shaped Solid: The irregularly shaped solid will be metal pellets of one of
the following metals: Aluminum, Lead or Copper. From the Handbook of Chemistry
and Physics, obtain and record below the accepted (theoretical values for the density of
these metals.
Metal:
Aluminum
Lead
Density:
ID letter of metal pellets
Mass of metal pellets
Initial water level (without metal pellets)
Final water level (with metal pellets added)
Volume of metal pellets
Calculated density of metal pellets
Based on the calculated density,
what is the identity of the metal
% Error (Handbook value vs experimental value)
B. DENSITY OF PURE LIQUIDS
I. Density of Water (PLEASE DO THIS LAST)
Mass of empty graduated cylinder
Mass of cylinder plus water
Mass of water
Volume of water (from the cylinder)
Calculated Density of Water
Temperature of Water
2
Copper
Theoretical Density (from Lab Manual)
% Error (calculated vs theoretical densities)
II. Density of Unknown Liquid: The unknown liquid will be one of the following:
Liquid:
Hexane
Methanol
Ethyl Acetate
Density @ 20.0C:
(From the Handbook of
Chemistry and Physics)
0.660 g/mL
0.791 g/mL
0.900 g/mL
Mass of empty graduated cylinder
Mass of cylinder plus unknown liquid
Mass of unknown liquid
Volume of unknown liquid (from the cylinder)
Calculated Density of unknown liquid
Based on the calculated density,
what is the identity of the unknown liquid
% Error (Handbook value vs experimental value)
3