Introduction: This experiment will demonstrate how to produce and measure a gas.
Purpose: To determine the amount of carbon dioxide gas produced from the reaction of sodium bicarbonate (NaHCO3) and acetic acid (HC2H3O2). The objectives for this lab are students will:
Determine the amount of product that should be formed in a given reaction
Perform a reaction mixing solutions together
Observe and record data
Use a percent error calculation to determine accuracy of calculations
Your pre lab should have these parts to it on a new sheet of paper:
Purpose: In your own words, write a 2-3-sentence overview on the purpose and objectives in this lab.
Hypothesis: State the hypothesis in clear language
Materials: Make a space to record what supplies you use during the lab.
Procedure: Make data table(s) to fill in information when you need to record. (See option above).
Practice Problems: Answer the above practice problems.
Your FINAL LAB should have these parts to it TYPED.
Purpose:In your OWN words, write 2-3-sentences on the purpose and objectives in this lab.
Hypothesis: State the hypothesis in clear language.
Materials: Write out in paragraph form all the materials used in the lab. (Include safety materials.)
Procedure: In paragraph form, tell the reader, like story, what steps were taken in your lab. ****Include figure 1 (a picture illustrating one of your procedure steps)
Theory of Relevant Principles: The essay of relevant principles should give background information (historical and/or theoretical) about the problem and how it relates to the lab. (Tips: Important facts about gases. Explain how a gas law relates to what occurred in the lab. How are gases used in society? Find information about CO2? Why is it important to be accurate and/or precise in a lab?)
Analysis: Begin the discussion by explaining and interpreting what you found and end it more broadly by placing your results in context. **** Include data tables and all your calculations (stoic, radius, volume, and %error).
Conclusion: Don't declare the experiment a success or failure. If poor results were obtained, discuss the results you expected as well as those you received. Do the results confirm your hypothesis? What are any areas for further study? How can the experiment be improved in light of possible errors? What did you learn from this experiment?
Works Cited: State if any sources were used (ie. The book, notes, lecture, internet, books).