MOLE LAB ACTIVITIES:
STATIONS
Name: _______________________________________ Per: ________
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
Data/Calculations: (be sure to include units in your answers!)
Mass of index card:
_________________
Mass of index card and candle:
_________________
Mass of candle:
_________________
Calculation (show work below):
Mass of candle and index card after burning: ________________
Mass of index card:
_________________
Mass of candle after burning:
_________________
Calculation (show work below):
Mass of candle before it was burned ___________
Mass of candle after it was burned ____________
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 below:
Formula for sodium bicarbonate: _____________
Calculate the molar mass of sodium bicarbonate ______________
Mass of sodium bicarbonate: __________
Calculate the moles of sodium bicarbonate: show work below:
STATION 5
Primary component of chalk: Calcium carbonate
Write your Procedure to determine # atoms in chalk.
_________
Data/ Calculations:
# atoms in chalk:
_______________________
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: