MOLE LAB ACTIVITY STATIONS
Name: _______________________________________ Date: ___________ Class: _________
STATION 1
Mass of copper sample ___________
Mass of aluminum sample ___________
# of atoms in copper sample: (show work below) _______________________________
# of atoms in aluminum sample (show work below) ______________________________
STATION 2
Mass of candle before burning:
_________________
Mass of candle after burning for 3 minutes:
_________________
Mass of candle wax that was burned:
_________________
**Wax is a mixture of hydrocarbons. C25H52 (paraffin) can be used as a representative
hydrocarbon in the mixture.
1. What is the molar mass of paraffin? Show work below.
2. How many moles of paraffin were in the candle before it burned? Show work below
3. How many molecules of paraffin are in the candle before it burned? Show work below
4. How many moles of paraffin were used up during the burning? Show work below
5. How many molecules of paraffin were used up during the burning? Show work below
STATION 3
Data/Calculations: (be sure to include units in your answers!)
Length of foil:
_________________
Width of foil:
_________________
Density of aluminum:
2.70 g/cm3
Mass of aluminum foil:
_________________
1. Use the density and the mass to find the volume. Show work below:
2. To find the thickness (H), you know that V=L x W x H. Using other information in your data table,
find H. show work below:
3. One aluminum atom is 2.5 x 10-8 cm thick (height). Find the thickness in atoms using the height. show
work below: (HINT: Write a conversion statement for thickness of one aluminum atom)
4. Knowing the mass of your foil, find the moles of aluminum. show work below:
5. Knowing the moles of aluminum, find the total number of atoms in the foil. show work below:
STATION 4
Mass of sugar (C12H22O11): __________
Calculate the molar mass of sugar. __________________
Calculate the moles of sugar: show work
________________
Mass of sodium bicarbonate (NaHCO3): __________
Calculate the molar mass of sodium bicarbonate: (show work) ____________________
Calculate the moles of sodium bicarbonate: show work __________________
STATION 5
Primary component of chalk: Calcium carbonate (CaCO3)
Mass of chalk: ____________
Mass of chalk after writing your whole name: ______________
Mass of chalk used to write your name: __________________
Moles of chalk used to write your name: (show work) _________________
Atoms of oxygen used to write your name: (show work) ________________
STATION 6
Data/Calculations: (be sure to include units in your answers!)
Mass of pennies: _________________
Remember that 99.2% of the pennies mass is from zinc and 0.8% of the pennies mass is made from
copper.
Mass of copper: ____________________Mass of zinc: ____________________
Calculations used to determine mass of copper and zinc: show work below:
Moles of copper _______________________
Show work here:
# atoms of copper _____________________
Show work here:
Moles of zinc _______________________
Show work here:
# atoms of zinc _____________________
Show work here: