Your Name
Hydrogen Lab
Scenario: The company StatoilHydro is looking for a new method of producing hydrogen gas.
Their chemists explain that they can produce hydrogen gas by mixing hydrochloric acid (HCl)
with several metals that are easily available for purchase. The chemists have turned to Mr.
Meldrum’s class to see which metal (zinc, aluminum, or magnesium) would be the most cost
effective for producing hydrogen gas. The cost of each metal can be seen on the chart below.
Metal
Cost per pound
Cost per gram
zinc
$3.30 per lb.
?
aluminum
$3.10
?
magnesium
$5.11
?
Here is what I need from you typed. You can turn in your math though handwritten, but it
needs to be rewritten nicely.
Hydrogen Lab
1. Investigable Question/Purpose
2. Variables
The Lab
3. Materials
4. Procedures (minimum 10)
5. Data: Data Table Quantitative
6. Data: Observations (minimum 8)
7. Graph
Conclusion
Purpose
Discuss the high and low data
Errors & and if I did this again I would…
Here are the findings of our company and how we arrived at our conclusions…
Hydrogen Lab Questions
Must be completed and turned in with lab to receive credit!
1. Write the 3 balanced chemical equations for the reaction of the 3 metals used in the lab.
2. Once you determined the percentage yield how can one use the theoretical yield and
percentage yield already determined to determine how much hydrogen would actually
be produced in an experiment that used 25 grams of Aluminum?
3. Theoretically, how many grams of Aluminum would one need to produce 1,000 Liters of
hydrogen gas using stoichiometry?
a. Use the percentage yield from previous experiments to predict how much more
Aluminum you think you need to actually produce 1,000 Liters of hydrogen?
b. Use the following ratio to solve the same question; How many grams of
Aluminum are needed to produce 1,000 Liters of hydrogen gas.
4. BP oil company requires a lot of hydrogen for hydrocracking. If BP gives us HCl for free
how much would it cost to produce 1x103 KL of H2 given the current prices for metal
listed above? Show me all of your work.